diff --git a/src/gui/kernel/qhighdpiscaling_p.h b/src/gui/kernel/qhighdpiscaling_p.h
index c43641b8c98..674b7378085 100644
--- a/src/gui/kernel/qhighdpiscaling_p.h
+++ b/src/gui/kernel/qhighdpiscaling_p.h
@@ -292,6 +292,8 @@ public:
     static inline QPoint origin(const QPlatformScreen *) { return QPoint(); }
     static inline QPoint mapPositionFromNative(const QPoint &pos, const QPlatformScreen *) { return pos; }
     static inline QPoint mapPositionToNative(const QPoint &pos, const QPlatformScreen *) { return pos; }
+    static inline QPoint mapPositionToGlobal(const QPoint &pos, const QPoint &windowGlobalPosition, const QWindow *window) { return pos; }
+    static inline QPoint mapPositionFromGlobal(const QPoint &pos, const QPoint &windowGlobalPosition, const QWindow *window) { return pos; }
     static inline QDpi logicalDpi() { return QDpi(-1,-1); }
 };