diff --git a/src/widgets/kernel/qwidgetwindow.cpp b/src/widgets/kernel/qwidgetwindow.cpp
index 09b4edaf1da..a194993328c 100644
--- a/src/widgets/kernel/qwidgetwindow.cpp
+++ b/src/widgets/kernel/qwidgetwindow.cpp
@@ -708,6 +708,7 @@ void QWidgetWindow::handleCloseEvent(QCloseEvent *event)
 {
     bool is_closing = m_widget->d_func()->close_helper(QWidgetPrivate::CloseWithSpontaneousEvent);
     event->setAccepted(is_closing);
+    QWindow::event(event); // Call QWindow QCloseEvent handler.
 }
 
 #ifndef QT_NO_WHEELEVENT