1 files changed, 2 insertions, 0 deletions
diff --git a/src/gui/kernel/qwindow.h b/src/gui/kernel/qwindow.h
index 0d13cfa648..40bfad908f 100644
--- a/src/gui/kernel/qwindow.h
+++ b/src/gui/kernel/qwindow.h
@@ -85,6 +85,7 @@ class QPlatformWindow;
 class QBackingStore;
 class QScreen;
 class QAccessibleInterface;
+class QWindowContainer;
 
 class Q_GUI_EXPORT QWindow : public QObject, public QSurface
 {
@@ -359,6 +360,7 @@ private:
 
     friend class QGuiApplication;
     friend class QGuiApplicationPrivate;
+    friend class QWindowContainer;
     friend Q_GUI_EXPORT QWindowPrivate *qt_window_private(QWindow *window);
 };