diff --git a/src/core/Cutter.cpp b/src/core/Cutter.cpp
index f96e9395..1f8c184b 100644
--- a/src/core/Cutter.cpp
+++ b/src/core/Cutter.cpp
@@ -1616,6 +1616,8 @@ QVector<HeapBlock> CutterCore::getHeapBlocks()
 
         blocks_vector.append(block);
     }
+
+    rz_list_free(blocks);
     return blocks_vector;
 }
 
diff --git a/src/widgets/WindowsHeapWidget.cpp b/src/widgets/WindowsHeapWidget.cpp
index a8278e47..f106565f 100644
--- a/src/widgets/WindowsHeapWidget.cpp
+++ b/src/widgets/WindowsHeapWidget.cpp
@@ -18,6 +18,8 @@ WindowsHeapWidget::WindowsHeapWidget(MainWindow *main, QWidget *parent)
 
     refreshDeferrer = dynamic_cast<CutterDockWidget *>(parent)->createRefreshDeferrer(
             [this]() { updateContents(); });
+
+    updateContents();
 }
 
 WindowsHeapWidget::~WindowsHeapWidget()