diff --git a/src/Mod/TechDraw/Gui/QGIProjGroup.h b/src/Mod/TechDraw/Gui/QGIProjGroup.h
index 0c1c1760c6..a8889000d4 100644
--- a/src/Mod/TechDraw/Gui/QGIProjGroup.h
+++ b/src/Mod/TechDraw/Gui/QGIProjGroup.h
@@ -46,22 +46,22 @@ public:
     ~QGIProjGroup() = default;
 
     enum {Type = QGraphicsItem::UserType + 113};
-    int type() const { return Type;}
+    int type() const override { return Type;}
 
     void alignTo(QGIProjGroup *, const QString &alignment);
 
-    virtual void updateView(bool update = false);
+    virtual void updateView(bool update = false) override;
     virtual void rotateView(void) override;
 
-    virtual void drawBorder(void);
+    virtual void drawBorder(void) override;
 
 protected:
-    virtual bool sceneEventFilter(QGraphicsItem* watched, QEvent *event);
-    virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+    virtual bool sceneEventFilter(QGraphicsItem* watched, QEvent *event) override;
+    virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
     // Mouse handling
-    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent * event );
-    virtual void mousePressEvent(QGraphicsSceneMouseEvent * event);
-    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * event);
+    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent * event ) override;
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent * event) override;
+    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * event) override;
     QGIView * getAnchorQItem() const;
 
 private:
diff --git a/src/Mod/TechDraw/Gui/QGIView.h b/src/Mod/TechDraw/Gui/QGIView.h
index 3210a08479..fa1122aff3 100644
--- a/src/Mod/TechDraw/Gui/QGIView.h
+++ b/src/Mod/TechDraw/Gui/QGIView.h
@@ -71,8 +71,8 @@ public:
     virtual void toggleCache(bool state);
     virtual void updateView(bool update = false);
     virtual void drawBorder(void);
-    virtual void isVisible(bool state) { m_visibility = state; };
-    virtual bool isVisible(void) {return m_visibility;};
+    virtual void isVisible(bool state) { m_visibility = state; }
+    virtual bool isVisible(void) {return m_visibility;}
     virtual void draw(void);
     virtual void drawCaption(void);
     virtual void rotateView(void);
diff --git a/src/Mod/TechDraw/Gui/QGIViewCollection.h b/src/Mod/TechDraw/Gui/QGIViewCollection.h
index 47f1603907..833900f1c3 100644
--- a/src/Mod/TechDraw/Gui/QGIViewCollection.h
+++ b/src/Mod/TechDraw/Gui/QGIViewCollection.h
@@ -43,13 +43,13 @@ public:
     ~QGIViewCollection() = default;
 
     enum {Type = QGraphicsItem::UserType + 110};
-    int type() const { return Type;}
+    int type() const override { return Type;}
 
-    virtual void updateView(bool update = false);
+    virtual void updateView(bool update = false) override;
     virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent * event);
 
 protected:
-  virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value);
+    virtual QVariant itemChange(GraphicsItemChange change, const QVariant &value) override;
 
 };