1 files changed, 4 insertions, 4 deletions
diff --git a/examples/widgets/widgets/mousebuttons/buttontester.h b/examples/widgets/widgets/mousebuttons/buttontester.h
index 156a44e9d0..9e7011ac9a 100644
--- a/examples/widgets/widgets/mousebuttons/buttontester.h
+++ b/examples/widgets/widgets/mousebuttons/buttontester.h
@@ -53,11 +53,11 @@ class ButtonTester : public QTextEdit
     Q_OBJECT
 
 protected:
-    void    mousePressEvent(QMouseEvent *event);
-    void    mouseReleaseEvent(QMouseEvent *event);
-    void    mouseDoubleClickEvent(QMouseEvent *event);
+    void    mousePressEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void    mouseReleaseEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
+    void    mouseDoubleClickEvent(QMouseEvent *event) Q_DECL_OVERRIDE;
 #ifndef QT_NO_WHEELEVENT
-    void    wheelEvent(QWheelEvent * event);
+    void    wheelEvent(QWheelEvent * event) Q_DECL_OVERRIDE;
 #endif
     int     buttonByNumber(const Qt::MouseButton button);
     QString enumNameFromValue(const Qt::MouseButton button);