diff --git a/src/widgets/widgets/qdockwidget.cpp b/src/widgets/widgets/qdockwidget.cpp
index 67eb466ba82..481fcdac128 100644
--- a/src/widgets/widgets/qdockwidget.cpp
+++ b/src/widgets/widgets/qdockwidget.cpp
@@ -1445,6 +1445,8 @@ bool QDockWidget::event(QEvent *event)
     switch (event->type()) {
 #ifndef QT_NO_ACTION
     case QEvent::Hide:
+        if (d->state)
+            d->endDrag(true);
         if (layout != 0)
             layout->keepSize(this);
         d->toggleViewAction->setChecked(false);