diff --git a/src/cutter.cpp b/src/cutter.cpp
index 7af54bbe..ea5c62ec 100644
--- a/src/cutter.cpp
+++ b/src/cutter.cpp
@@ -144,6 +144,12 @@ QString CutterCore::sanitizeStringForCommand(QString s)
     return s.replace(regexp, "_");
 }
 
+/**
+ * @brief CutterCore::cmd send a command to radare2
+ * @param str the command you want to execute
+ * Note that if you want to seek to an address, you should use CutterCore::seek
+ * @return command output
+ */
 QString CutterCore::cmd(const QString &str)
 {
     CORE_LOCK();
@@ -341,19 +347,23 @@ void CutterCore::setImmediateBase(const QString &r2BaseName, RVA offset)
     emit instructionChanged(offset);
 }
 
-void CutterCore::seek(QString addr)
+void CutterCore::seek(ut64 offset)
 {
     // Slower than using the API, but the API is not complete
     // which means we either have to duplicate code from radare2
     // here, or refactor radare2 API.
     CORE_LOCK();
-    cmd(QString("s %1").arg(addr));
+    if (offset == RVA_INVALID)
+    {
+        return;
+    }
+    cmd(QString("s %1").arg(offset));
     // cmd already does emit seekChanged(core_->offset);
 }
 
-void CutterCore::seek(ut64 offset)
+void CutterCore::seek(QString offset)
 {
-    seek(QString::number(offset));
+    seek(offset.toULongLong());
 }
 
 void CutterCore::seekPrev()
diff --git a/src/widgets/HexdumpWidget.cpp b/src/widgets/HexdumpWidget.cpp
index e2deccc0..5a4ebc01 100644
--- a/src/widgets/HexdumpWidget.cpp
+++ b/src/widgets/HexdumpWidget.cpp
@@ -296,8 +296,8 @@ void HexdumpWidget::refresh(RVA addr)
     // TODO: Figure out how to calculate a sane value for this
     bufferLines = qhelpers::getMaxFullyDisplayedLines(ui->hexHexText);
 
-
-    RVA cur_addr = addr - (bufferLines * cols);
+    //RVA cur_addr = addr - (bufferLines * cols);
+    RVA cur_addr = addr;
     first_loaded_address = cur_addr;
     last_loaded_address = cur_addr + (3 * bufferLines) * cols;
     QElapsedTimer getHexdumpTimer;
@@ -679,7 +679,7 @@ void HexdumpWidget::updateParseWindow(RVA start_address, int size)
 
     QString address = RAddressString(start_address);
 
-    QString argument = QString("%1 " + address).arg(size);
+    QString argument = QString("%1@" + address).arg(size);
     // Get selected combos
     QString arch = ui->parseArchComboBox->currentText();
     QString bits = ui->parseBitsComboBox->currentText();