diff --git a/src/widgets/widgets/qmainwindowlayout_p.h b/src/widgets/widgets/qmainwindowlayout_p.h
index 66182bf001..bcb814fb20 100644
--- a/src/widgets/widgets/qmainwindowlayout_p.h
+++ b/src/widgets/widgets/qmainwindowlayout_p.h
@@ -583,7 +583,6 @@ public:
     bool plug(QLayoutItem *widgetItem);
     QLayoutItem *unplug(QWidget *widget, bool group = false);
     void revert(QLayoutItem *widgetItem);
-    void paintDropIndicator(QPainter *p, QWidget *widget, const QRegion &clip);
     void applyState(QMainWindowLayoutState &newState, bool animate = true);
     void restore(bool keepSavedState = false);
     void animationFinished(QWidget *widget);