diff --git a/src/AnalThread.cpp b/src/AnalThread.cpp
index 0afe3545..91636771 100644
--- a/src/AnalThread.cpp
+++ b/src/AnalThread.cpp
@@ -9,7 +9,7 @@ AnalThread::AnalThread(OptionsDialog *parent) :
     QThread(parent),
     level(2),
     main(nullptr),
-    core(CutterCore::getInstance()),
+    core(Core()),
     interrupted(false)
 {
 }
diff --git a/src/dialogs/FlagDialog.cpp b/src/dialogs/FlagDialog.cpp
index eddaf0e4..67dc0521 100644
--- a/src/dialogs/FlagDialog.cpp
+++ b/src/dialogs/FlagDialog.cpp
@@ -5,7 +5,7 @@ FlagDialog::FlagDialog(RVA offset, QWidget *parent) :
     QDialog(parent),
     ui(new Ui::FlagDialog),
     offset(offset),
-    core(CutterCore::getInstance())
+    core(Core())
 {
     ui->setupUi(this);
     setWindowFlags(windowFlags() & (~Qt::WindowContextHelpButtonHint));
diff --git a/src/dialogs/NewFileDialog.cpp b/src/dialogs/NewFileDialog.cpp
index f99768d6..b7eda04d 100644
--- a/src/dialogs/NewFileDialog.cpp
+++ b/src/dialogs/NewFileDialog.cpp
@@ -253,7 +253,7 @@ bool NewFileDialog::fillRecentFilesList()
 
 bool NewFileDialog::fillProjectsList()
 {
-    CutterCore *core = CutterCore::getInstance();
+    CutterCore *core = Core();
 
     auto currentDir = Config()->getDirProjects();
 
diff --git a/src/dialogs/OptionsDialog.cpp b/src/dialogs/OptionsDialog.cpp
index b32f684f..0f9d53b6 100644
--- a/src/dialogs/OptionsDialog.cpp
+++ b/src/dialogs/OptionsDialog.cpp
@@ -12,7 +12,7 @@ OptionsDialog::OptionsDialog(MainWindow *main):
     QDialog(0), // parent may not be main
     analThread(this),
     main(main),
-    core(CutterCore::getInstance()),
+    core(Core()),
     defaultAnalLevel(1),
     ui(new Ui::OptionsDialog)
 {
diff --git a/src/dialogs/SaveProjectDialog.cpp b/src/dialogs/SaveProjectDialog.cpp
index 724641c2..3e75cd3a 100644
--- a/src/dialogs/SaveProjectDialog.cpp
+++ b/src/dialogs/SaveProjectDialog.cpp
@@ -13,7 +13,7 @@ SaveProjectDialog::SaveProjectDialog(bool quit, QWidget *parent) :
 {
     ui->setupUi(this);
 
-    CutterCore *core = CutterCore::getInstance();
+    CutterCore *core = Core();
 
     if (quit) {
         ui->buttonBox->setStandardButtons(QDialogButtonBox::Save
diff --git a/src/dialogs/XrefsDialog.cpp b/src/dialogs/XrefsDialog.cpp
index ed5195a5..171fc6e5 100644
--- a/src/dialogs/XrefsDialog.cpp
+++ b/src/dialogs/XrefsDialog.cpp
@@ -13,7 +13,7 @@ XrefsDialog::XrefsDialog(QWidget *parent) :
     addr(0),
     func_name(QString::null),
     ui(new Ui::XrefsDialog),
-    core(CutterCore::getInstance())
+    core(Core())
 {
     ui->setupUi(this);
     setWindowFlags(windowFlags() & (~Qt::WindowContextHelpButtonHint));
diff --git a/src/utils/Highlighter.cpp b/src/utils/Highlighter.cpp
index 8dcc4086..981ea612 100644
--- a/src/utils/Highlighter.cpp
+++ b/src/utils/Highlighter.cpp
@@ -8,7 +8,7 @@ Highlighter::Highlighter(QTextDocument *parent) :
 {
     HighlightingRule rule;
 
-    core = CutterCore::getInstance();
+    core = Core();
 
     keywordFormat.setForeground(QColor(65, 131, 215));
     keywordFormat.setFontWeight(QFont::Bold);
diff --git a/src/widgets/ClassesWidget.cpp b/src/widgets/ClassesWidget.cpp
index 09102d9e..d566349b 100644
--- a/src/widgets/ClassesWidget.cpp
+++ b/src/widgets/ClassesWidget.cpp
@@ -256,8 +256,8 @@ void ClassesWidget::refreshClasses()
 {
     model->beginReload();
     classes = getSource() == Source::BIN
-              ? CutterCore::getInstance()->getAllClassesFromBin()
-              : CutterCore::getInstance()->getAllClassesFromFlags();
+              ? Core()->getAllClassesFromBin()
+              : Core()->getAllClassesFromFlags();
     model->endReload();
 
     qhelpers::adjustColumns(ui->classesTreeView, 3, 0);
@@ -268,5 +268,5 @@ void ClassesWidget::refreshClasses()
 void ClassesWidget::on_classesTreeView_doubleClicked(const QModelIndex &index)
 {
     RVA offset = index.data(ClassesModel::OffsetRole).value<RVA>();
-    CutterCore::getInstance()->seek(offset);
+    Core()->seek(offset);
 }
diff --git a/src/widgets/CommentsWidget.cpp b/src/widgets/CommentsWidget.cpp
index a3b992a0..a6ca70b9 100644
--- a/src/widgets/CommentsWidget.cpp
+++ b/src/widgets/CommentsWidget.cpp
@@ -39,7 +39,7 @@ void CommentsWidget::on_commentsTreeWidget_itemDoubleClicked(QTreeWidgetItem *it
 {
     // Get offset and name of item double clicked
     CommentDescription comment = item->data(0, Qt::UserRole).value<CommentDescription>();
-    CutterCore::getInstance()->seek(comment.offset);
+    Core()->seek(comment.offset);
 }
 
 void CommentsWidget::on_nestedCmtsTreeWidget_itemDoubleClicked(QTreeWidgetItem *item, int)
@@ -51,7 +51,7 @@ void CommentsWidget::on_nestedCmtsTreeWidget_itemDoubleClicked(QTreeWidgetItem *
 
     // Get offset and name of item double clicked
     CommentDescription comment = item->data(0, Qt::UserRole).value<CommentDescription>();
-    CutterCore::getInstance()->seek(comment.offset);
+    Core()->seek(comment.offset);
 
 }
 
@@ -139,11 +139,11 @@ QMap<QString, QList<QList<QString>>> CutterCore::getNestedComments()
 void CommentsWidget::refreshTree()
 {
     ui->nestedCmtsTreeWidget->clear();
-    QList<CommentDescription> comments = CutterCore::getInstance()->getAllComments("CCu");
+    QList<CommentDescription> comments = Core()->getAllComments("CCu");
     QMap<QString, QList<CommentDescription>> nestedComments;
 
     for (CommentDescription comment : comments) {
-        QString fcn_name = CutterCore::getInstance()->cmdFunctionAt(comment.offset);
+        QString fcn_name = Core()->cmdFunctionAt(comment.offset);
         QTreeWidgetItem *item = new QTreeWidgetItem();
         item->setText(0, RAddressString(comment.offset));
         item->setText(1, fcn_name);
diff --git a/src/widgets/ConsoleWidget.cpp b/src/widgets/ConsoleWidget.cpp
index fc38404b..95b58e74 100644
--- a/src/widgets/ConsoleWidget.cpp
+++ b/src/widgets/ConsoleWidget.cpp
@@ -173,7 +173,7 @@ void ConsoleWidget::on_inputLineEdit_returnPressed()
     QString input = ui->inputLineEdit->text();
     if (!input.isEmpty()) {
         if (!isForbidden(input)) {
-            QString res = CutterCore::getInstance()->cmd(input);
+            QString res = Core()->cmd(input);
             QString cmd_line = "[" + RAddressString(Core()->getOffset()) + "]> " + input + "\n";
             ui->outputTextEdit->appendPlainText(cmd_line + res);
             scrollOutputToEnd();
diff --git a/src/widgets/Dashboard.cpp b/src/widgets/Dashboard.cpp
index 7c464b4c..6641e961 100644
--- a/src/widgets/Dashboard.cpp
+++ b/src/widgets/Dashboard.cpp
@@ -103,12 +103,12 @@ void Dashboard::updateContents()
     }
 
     // Add file hashes and libraries
-    QString md5 = CutterCore::getInstance()->cmd("e file.md5");
-    QString sha1 = CutterCore::getInstance()->cmd("e file.sha1");
+    QString md5 = Core()->cmd("e file.md5");
+    QString sha1 = Core()->cmd("e file.sha1");
     ui->md5Edit->setText(md5);
     ui->sha1Edit->setText(sha1);
 
-    QString libs = CutterCore::getInstance()->cmd("il");
+    QString libs = Core()->cmd("il");
     QStringList lines = libs.split("\n", QString::SkipEmptyParts);
     if (!lines.isEmpty()) {
         lines.removeFirst();
@@ -142,11 +142,11 @@ void Dashboard::updateContents()
     ui->verticalLayout_2->addSpacerItem(spacer);
 
     // Add entropy value
-    QString entropy = CutterCore::getInstance()->cmd("ph entropy").trimmed();
+    QString entropy = Core()->cmd("ph entropy").trimmed();
     ui->lblEntropy->setText(entropy);
 
     // Get stats for the graphs
-    QStringList stats = CutterCore::getInstance()->getStats();
+    QStringList stats = Core()->getStats();
 }
 
 void Dashboard::on_certificateButton_clicked()
@@ -186,4 +186,4 @@ void Dashboard::on_certificateButton_clicked()
                                          QMessageBox::NoButton, this);
         msgBoxCertificateInf.exec();
     }
-}
\ No newline at end of file
+}
diff --git a/src/widgets/DisassemblyWidget.cpp b/src/widgets/DisassemblyWidget.cpp
index 7e3ab204..818060ba 100644
--- a/src/widgets/DisassemblyWidget.cpp
+++ b/src/widgets/DisassemblyWidget.cpp
@@ -505,7 +505,7 @@ bool DisassemblyWidget::eventFilter(QObject *obj, QEvent *event)
         }
 
         if (jump != RVA_INVALID) {
-            CutterCore::getInstance()->seek(jump);
+            Core()->seek(jump);
         }
 
         return true;
diff --git a/src/widgets/EntrypointWidget.cpp b/src/widgets/EntrypointWidget.cpp
index 74611395..132868f1 100644
--- a/src/widgets/EntrypointWidget.cpp
+++ b/src/widgets/EntrypointWidget.cpp
@@ -28,7 +28,7 @@ EntrypointWidget::~EntrypointWidget() {}
 void EntrypointWidget::fillEntrypoint()
 {
     ui->entrypointTreeWidget->clear();
-    for (auto i : CutterCore::getInstance()->getAllEntrypoint()) {
+    for (auto i : Core()->getAllEntrypoint()) {
         QTreeWidgetItem *item = new QTreeWidgetItem();
         item->setText(0, RAddressString(i.vaddr));
         item->setText(1, i.type);
@@ -48,5 +48,5 @@ void EntrypointWidget::on_entrypointTreeWidget_itemDoubleClicked(QTreeWidgetItem
                                                                  int /* column */)
 {
     EntrypointDescription ep = item->data(0, Qt::UserRole).value<EntrypointDescription>();
-    CutterCore::getInstance()->seek(ep.vaddr);
+    Core()->seek(ep.vaddr);
 }
diff --git a/src/widgets/ExportsWidget.cpp b/src/widgets/ExportsWidget.cpp
index f0e539a4..528599c1 100644
--- a/src/widgets/ExportsWidget.cpp
+++ b/src/widgets/ExportsWidget.cpp
@@ -148,7 +148,7 @@ ExportsWidget::~ExportsWidget() {}
 void ExportsWidget::refreshExports()
 {
     exports_model->beginReloadExports();
-    exports = CutterCore::getInstance()->getAllExports();
+    exports = Core()->getAllExports();
     exports_model->endReloadExports();
 
     qhelpers::adjustColumns(ui->exportsTreeView, 3, 0);
@@ -163,5 +163,5 @@ void ExportsWidget::setScrollMode()
 void ExportsWidget::on_exportsTreeView_doubleClicked(const QModelIndex &index)
 {
     ExportDescription exp = index.data(ExportsModel::ExportDescriptionRole).value<ExportDescription>();
-    CutterCore::getInstance()->seek(exp.vaddr);
+    Core()->seek(exp.vaddr);
 }
diff --git a/src/widgets/FlagsWidget.cpp b/src/widgets/FlagsWidget.cpp
index 2b5dca82..8a674202 100644
--- a/src/widgets/FlagsWidget.cpp
+++ b/src/widgets/FlagsWidget.cpp
@@ -150,7 +150,7 @@ FlagsWidget::~FlagsWidget() {}
 void FlagsWidget::on_flagsTreeView_doubleClicked(const QModelIndex &index)
 {
     FlagDescription flag = index.data(FlagsModel::FlagDescriptionRole).value<FlagDescription>();
-    CutterCore::getInstance()->seek(flag.offset);
+    Core()->seek(flag.offset);
 }
 
 void FlagsWidget::on_flagspaceCombo_currentTextChanged(const QString &arg1)
@@ -169,7 +169,7 @@ void FlagsWidget::on_actionRename_triggered()
     r->setName(flag.name);
     if (r->exec()) {
         QString new_name = r->getName();
-        CutterCore::getInstance()->renameFlag(flag.name, new_name);
+        Core()->renameFlag(flag.name, new_name);
     }
 }
 
@@ -204,7 +204,7 @@ void FlagsWidget::refreshFlagspaces()
     ui->flagspaceCombo->clear();
     ui->flagspaceCombo->addItem(tr("(all)"));
 
-    for (auto i : CutterCore::getInstance()->getAllFlagspaces()) {
+    for (auto i : Core()->getAllFlagspaces()) {
         ui->flagspaceCombo->addItem(i.name, QVariant::fromValue(i));
     }
 
@@ -224,7 +224,7 @@ void FlagsWidget::refreshFlags()
 
 
     flags_model->beginReloadFlags();
-    flags = CutterCore::getInstance()->getAllFlags(flagspace);
+    flags = Core()->getAllFlags(flagspace);
     flags_model->endReloadFlags();
 
     qhelpers::adjustColumns(ui->flagsTreeView, 2, 0);
diff --git a/src/widgets/FunctionsWidget.cpp b/src/widgets/FunctionsWidget.cpp
index 28e0b72c..9328be72 100644
--- a/src/widgets/FunctionsWidget.cpp
+++ b/src/widgets/FunctionsWidget.cpp
@@ -169,7 +169,7 @@ QVariant FunctionModel::data(const QModelIndex &index, int role) const
         return static_cast<int>(Qt::AlignLeft | Qt::AlignVCenter);
 
     case Qt::ToolTipRole: {
-        QList<QString> info = CutterCore::getInstance()->cmd("afi @ " + function.name).split("\n");
+        QList<QString> info = Core()->cmd("afi @ " + function.name).split("\n");
         if (info.length() > 2) {
             QString size = info[4].split(" ")[1];
             QString complex = info[8].split(" ")[1];
@@ -177,8 +177,8 @@ QVariant FunctionModel::data(const QModelIndex &index, int role) const
             return QString("Summary:\n\n    Size: " + size +
                            "\n    Cyclomatic complexity: " + complex +
                            "\n    Basic blocks: " + bb +
-                           "\n\nDisasm preview:\n\n" + CutterCore::getInstance()->cmd("pdi 10 @ " + function.name) +
-                           "\nStrings:\n\n" + CutterCore::getInstance()->cmd("pdsf @ " + function.name));
+                           "\n\nDisasm preview:\n\n" + Core()->cmd("pdi 10 @ " + function.name) +
+                           "\nStrings:\n\n" + Core()->cmd("pdsf @ " + function.name));
         }
         return QVariant();
     }
@@ -435,13 +435,13 @@ void FunctionsWidget::refreshTree()
 {
     functionModel->beginReloadFunctions();
 
-    functions = CutterCore::getInstance()->getAllFunctions();
+    functions = Core()->getAllFunctions();
 
     importAddresses.clear();
-    foreach (ImportDescription import, CutterCore::getInstance()->getAllImports())
+    foreach (ImportDescription import, Core()->getAllImports())
         importAddresses.insert(import.plt);
 
-    mainAdress = (ut64)CutterCore::getInstance()->cmdj("iMj").object()["vaddr"].toInt();
+    mainAdress = (ut64)Core()->cmdj("iMj").object()["vaddr"].toInt();
 
     functionModel->endReloadFunctions();
 
@@ -485,9 +485,9 @@ void FunctionsWidget::on_actionDisasAdd_comment_triggered()
         // Get new function name
         QString comment = c->getComment();
         // Rename function in r2 core
-        CutterCore::getInstance()->setComment(function.offset, comment);
+        Core()->setComment(function.offset, comment);
         // Seek to new renamed function
-        CutterCore::getInstance()->seek(function.offset);
+        Core()->seek(function.offset);
         // TODO: Refresh functions tree widget
     }
 }
@@ -509,10 +509,10 @@ void FunctionsWidget::on_actionFunctionsRename_triggered()
         QString new_name = r->getName();
 
         // Rename function in r2 core
-        CutterCore::getInstance()->renameFunction(function.name, new_name);
+        Core()->renameFunction(function.name, new_name);
 
         // Seek to new renamed function
-        CutterCore::getInstance()->seek(function.offset);
+        Core()->seek(function.offset);
     }
 }
 
diff --git a/src/widgets/ResourcesWidget.cpp b/src/widgets/ResourcesWidget.cpp
index 05c238bb..33ff00ec 100644
--- a/src/widgets/ResourcesWidget.cpp
+++ b/src/widgets/ResourcesWidget.cpp
@@ -114,5 +114,5 @@ void ResourcesWidget::refreshResources()
 void ResourcesWidget::onDoubleClicked(const QModelIndex &index)
 {
     ResourcesDescription res = index.data(Qt::UserRole).value<ResourcesDescription>();
-    CutterCore::getInstance()->seek(res.vaddr);
+    Core()->seek(res.vaddr);
 }
diff --git a/src/widgets/SdbDock.cpp b/src/widgets/SdbDock.cpp
index 8d7567b2..2a80306d 100644
--- a/src/widgets/SdbDock.cpp
+++ b/src/widgets/SdbDock.cpp
@@ -32,18 +32,18 @@ void SdbDock::reload(QString _path)
     ui->treeWidget->clear();
     QList<QString> keys;
     /* key-values */
-    keys = CutterCore::getInstance()->sdbListKeys(path);
+    keys = Core()->sdbListKeys(path);
     foreach (QString key, keys) {
         QTreeWidgetItem *tempItem = new QTreeWidgetItem();
         tempItem->setText(0, key);
-        tempItem->setText(1, CutterCore::getInstance()->sdbGet(path, key));
+        tempItem->setText(1, Core()->sdbGet(path, key));
         tempItem->setFlags(Qt::ItemIsSelectable | Qt::ItemIsUserCheckable | Qt::ItemIsEnabled |
                            Qt::ItemIsDragEnabled | Qt::ItemIsEditable);
         ui->treeWidget->insertTopLevelItem(0, tempItem);
     }
     qhelpers::adjustColumns(ui->treeWidget, 0);
     /* namespaces */
-    keys = CutterCore::getInstance()->sdbList(path);
+    keys = Core()->sdbList(path);
     keys.append("..");
     foreach (QString key, keys) {
         QTreeWidgetItem *tempItem = new QTreeWidgetItem();
diff --git a/src/widgets/SectionsWidget.cpp b/src/widgets/SectionsWidget.cpp
index b73d6e32..d5ab37ce 100644
--- a/src/widgets/SectionsWidget.cpp
+++ b/src/widgets/SectionsWidget.cpp
@@ -29,7 +29,7 @@ void SectionsWidget::refreshSections()
     tree->clear();
 
     int row = 0;
-    for (auto section : CutterCore::getInstance()->getAllSections()) {
+    for (auto section : Core()->getAllSections()) {
         fillSections(row++, section);
     }
 
diff --git a/src/widgets/Sidebar.cpp b/src/widgets/Sidebar.cpp
index 9241ed78..f0ae46a8 100644
--- a/src/widgets/Sidebar.cpp
+++ b/src/widgets/Sidebar.cpp
@@ -42,17 +42,17 @@ void SideBar::on_lockButton_clicked()
 
 void SideBar::on_calcInput_textChanged(const QString &arg1)
 {
-    ui->calcOutput->setText(QString::number(CutterCore::getInstance()->math(arg1)));
+    ui->calcOutput->setText(QString::number(Core()->math(arg1)));
 }
 
 void SideBar::on_asm2hex_clicked()
 {
-    ui->hexInput->setPlainText(CutterCore::getInstance()->assemble(ui->asmInput->toPlainText()));
+    ui->hexInput->setPlainText(Core()->assemble(ui->asmInput->toPlainText()));
 }
 
 void SideBar::on_hex2asm_clicked()
 {
-    ui->asmInput->setPlainText(CutterCore::getInstance()->disassemble(ui->hexInput->toPlainText()));
+    ui->asmInput->setPlainText(Core()->disassemble(ui->hexInput->toPlainText()));
 }
 
 void SideBar::on_respButton_toggled(bool checked)
diff --git a/src/widgets/StringsWidget.cpp b/src/widgets/StringsWidget.cpp
index cc0dc489..4c9c485f 100644
--- a/src/widgets/StringsWidget.cpp
+++ b/src/widgets/StringsWidget.cpp
@@ -165,13 +165,13 @@ StringsWidget::~StringsWidget() {}
 void StringsWidget::on_stringsTreeView_doubleClicked(const QModelIndex &index)
 {
     StringDescription str = index.data(StringsModel::StringDescriptionRole).value<StringDescription>();
-    CutterCore::getInstance()->seek(str.vaddr);
+    Core()->seek(str.vaddr);
 }
 
 void StringsWidget::refreshStrings()
 {
     model->beginReload();
-    strings = CutterCore::getInstance()->getAllStrings();
+    strings = Core()->getAllStrings();
     model->endReload();
 
     qhelpers::adjustColumns(ui->stringsTreeView, 5, 0);
diff --git a/src/widgets/SymbolsWidget.cpp b/src/widgets/SymbolsWidget.cpp
index 620e3c56..cd2eaef1 100644
--- a/src/widgets/SymbolsWidget.cpp
+++ b/src/widgets/SymbolsWidget.cpp
@@ -29,13 +29,13 @@ void SymbolsWidget::on_symbolsTreeWidget_itemDoubleClicked(QTreeWidgetItem *item
 
     // Get offset and name of item double clicked
     SymbolDescription symbol = item->data(0, Qt::UserRole).value<SymbolDescription>();
-    CutterCore::getInstance()->seek(symbol.vaddr);
+    Core()->seek(symbol.vaddr);
 }
 
 void SymbolsWidget::fillSymbols()
 {
     ui->symbolsTreeWidget->clear();
-    for (auto symbol : CutterCore::getInstance()->getAllSymbols()) {
+    for (auto symbol : Core()->getAllSymbols()) {
         QTreeWidgetItem *item = new QTreeWidgetItem();
         item->setText(0, RAddressString(symbol.vaddr));
         item->setText(1, QString("%1 %2").arg(symbol.bind, symbol.type).trimmed());
diff --git a/src/widgets/TypesWidget.cpp b/src/widgets/TypesWidget.cpp
index 302edfa6..8de167b7 100644
--- a/src/widgets/TypesWidget.cpp
+++ b/src/widgets/TypesWidget.cpp
@@ -129,7 +129,7 @@ TypesWidget::~TypesWidget() {}
 void TypesWidget::refreshTypes()
 {
     types_model->beginReloadTypes();
-    types = CutterCore::getInstance()->getAllTypes();
+    types = Core()->getAllTypes();
     types_model->endReloadTypes();
 
     qhelpers::adjustColumns(ui->typesTreeView, 3, 0);
@@ -144,5 +144,5 @@ void TypesWidget::on_typesTreeView_doubleClicked(const QModelIndex &index)
 {
     Q_UNUSED(index);
     // TypeDescription exp = index.data(TypesModel::TypeDescriptionRole).value<TypeDescription>();
-    // CutterCore::getInstance()->seek(exp.vaddr);
+    // Core()->seek(exp.vaddr);
 }
diff --git a/src/widgets/VTablesWidget.cpp b/src/widgets/VTablesWidget.cpp
index 2da2fd07..79c90dd6 100644
--- a/src/widgets/VTablesWidget.cpp
+++ b/src/widgets/VTablesWidget.cpp
@@ -172,7 +172,7 @@ VTablesWidget::~VTablesWidget()
 void VTablesWidget::refreshVTables()
 {
     model->beginReload();
-    vtables = CutterCore::getInstance()->getAllVTables();
+    vtables = Core()->getAllVTables();
     model->endReload();
 
     qhelpers::adjustColumns(ui->vTableTreeView, 3, 0);
@@ -184,9 +184,9 @@ void VTablesWidget::on_vTableTreeView_doubleClicked(const QModelIndex &index)
 {
     QModelIndex parent = index.parent();
     if (parent.isValid())
-        CutterCore::getInstance()->seek(index.data(
+        Core()->seek(index.data(
                                             VTableModel::VTableDescriptionRole).value<ClassMethodDescription>().addr);
     else
-        CutterCore::getInstance()->seek(index.data(
+        Core()->seek(index.data(
                                             VTableModel::VTableDescriptionRole).value<VTableDescription>().addr);
 }