diff --git a/src/frontends/qt/InsertTableWidget.h b/src/frontends/qt/InsertTableWidget.h
index 4917392632..e5d7648544 100644
--- a/src/frontends/qt/InsertTableWidget.h
+++ b/src/frontends/qt/InsertTableWidget.h
@@ -41,7 +41,7 @@ protected Q_SLOTS:
 	void mouseReleaseEvent(QMouseEvent *) override;
 	void mousePressEvent(QMouseEvent *) override;
 	void paintEvent(QPaintEvent *) override;
-	void hideEvent(QHideEvent * event);
+	void hideEvent(QHideEvent * event) override;
 
 private:
 	//! update the geometry