diff --git a/src/blackgui/enableforviewbasedindicator.h b/src/blackgui/enableforviewbasedindicator.h
index 30fe2f530..053e2931f 100644
--- a/src/blackgui/enableforviewbasedindicator.h
+++ b/src/blackgui/enableforviewbasedindicator.h
@@ -15,7 +15,6 @@
 #include "blackgui/blackguiexport.h"
 
 namespace BlackGui { namespace Views { class CViewBaseNonTemplate; }}
-
 namespace BlackGui
 {
     //! Hand over indication task to an embedded view
@@ -25,7 +24,7 @@ namespace BlackGui
         //! Enable loading indicator
         void enableLoadIndicator(bool enable);
 
-        //! Showing load indicator
+        //! Showing load indicator?
         bool isShowingLoadIndicator() const;
 
         //! Show loading indicator
diff --git a/src/blackgui/loadindicator.h b/src/blackgui/loadindicator.h
index 9259cf012..c35fbb489 100644
--- a/src/blackgui/loadindicator.h
+++ b/src/blackgui/loadindicator.h
@@ -107,7 +107,7 @@ namespace BlackGui
         //! \copydoc QWidget::paintEvent
         virtual void paintEvent(QPaintEvent *event) override;
 
-        //! Is parent widget visible
+        //! Is parent widget visible?
         bool isParentVisible() const;
 
     private:
diff --git a/src/swiftdata/swiftdata.h b/src/swiftdata/swiftdata.h
index af8f472fe..79896922e 100644
--- a/src/swiftdata/swiftdata.h
+++ b/src/swiftdata/swiftdata.h
@@ -44,7 +44,7 @@ public:
     CSwiftData(QWidget *parent = nullptr);
 
     //! Destructor
-    ~CSwiftData();
+    virtual ~CSwiftData();
 
 protected:
     //! \name QMainWindow events