diff --git a/src/widgets/kernel/qwidget.cpp b/src/widgets/kernel/qwidget.cpp
index 7529f5b3444..6fdd5d3d0e4 100644
--- a/src/widgets/kernel/qwidget.cpp
+++ b/src/widgets/kernel/qwidget.cpp
@@ -1880,7 +1880,6 @@ void QWidgetPrivate::deleteTLSysExtra()
         if (extra->topextra->window) {
             extra->topextra->window->destroy();
         }
-        setWinId(0);
         delete extra->topextra->window;
         extra->topextra->window = 0;