diff --git a/include/Qt/PlayerDemo.h b/include/Qt/PlayerDemo.h
index c5a49377..cfed78bd 100644
--- a/include/Qt/PlayerDemo.h
+++ b/include/Qt/PlayerDemo.h
@@ -57,7 +57,7 @@ public:
     ~PlayerDemo();
 
 protected:
-    override void keyPressEvent(QKeyEvent *event);
+    void keyPressEvent(QKeyEvent *event) Q_DECL_OVERRIDE;
     void closeEvent(QCloseEvent *event) Q_DECL_OVERRIDE;
 
 private slots: