diff --git a/libs/qt/qcd_view.h b/libs/qt/qcd_view.h
index 26924a5..781747f 100644
--- a/libs/qt/qcd_view.h
+++ b/libs/qt/qcd_view.h
@@ -50,9 +50,9 @@ public:
 	CDItemModel * CDModel() {return model_;}
 
 protected:
-	void mousePressEvent(QMouseEvent * );
-	void mouseReleaseEvent(QMouseEvent * );
-	void currentChanged(const QModelIndex & cur, const QModelIndex & prev);
+	void mousePressEvent(QMouseEvent * ) override;
+	void mouseReleaseEvent(QMouseEvent * ) override;
+	void currentChanged(const QModelIndex & cur, const QModelIndex & prev) override;
 
 public slots:
 	void refresh();