diff --git a/src/plugins/platforms/xcb/qxcbwindow.cpp b/src/plugins/platforms/xcb/qxcbwindow.cpp
index c4649ac818..37d6336a72 100644
--- a/src/plugins/platforms/xcb/qxcbwindow.cpp
+++ b/src/plugins/platforms/xcb/qxcbwindow.cpp
@@ -2157,7 +2157,7 @@ bool QXcbWindow::isEmbedded() const
 QPoint QXcbWindow::mapToGlobal(const QPoint &pos) const
 {
     if (!m_embedded)
-        return pos;
+        return QPlatformWindow::mapToGlobal(pos);
 
     QPoint ret;
     xcb_translate_coordinates_cookie_t cookie =
@@ -2177,7 +2177,7 @@ QPoint QXcbWindow::mapToGlobal(const QPoint &pos) const
 QPoint QXcbWindow::mapFromGlobal(const QPoint &pos) const
 {
     if (!m_embedded)
-        return pos;
+        return QPlatformWindow::mapFromGlobal(pos);
 
     QPoint ret;
     xcb_translate_coordinates_cookie_t cookie =