diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index 2eee8928e4..0a41196b5b 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2358,12 +2358,6 @@ bool QWindow::event(QEvent *ev)
     return true;
 }
 
-void QWindowPrivate::deliverUpdateRequest()
-{
-    if (platformWindow)
-        platformWindow->deliverUpdateRequest();
-}
-
 /*!
     Schedules a QEvent::UpdateRequest event to be delivered to this window.
 
diff --git a/src/gui/kernel/qwindow_p.h b/src/gui/kernel/qwindow_p.h
index 7ef73eb410..adc9414b0f 100644
--- a/src/gui/kernel/qwindow_p.h
+++ b/src/gui/kernel/qwindow_p.h
@@ -124,8 +124,6 @@ public:
     bool applyCursor();
 #endif
 
-    void deliverUpdateRequest();
-
     QPoint globalPosition() const;
 
     QWindow *topLevelWindow() const;