diff --git a/src/widgets/kernel/qdesktopwidget_p.h b/src/widgets/kernel/qdesktopwidget_p.h
index 4846a868aa..dade4fe45e 100644
--- a/src/widgets/kernel/qdesktopwidget_p.h
+++ b/src/widgets/kernel/qdesktopwidget_p.h
@@ -56,6 +56,7 @@
 #include "private/qwidget_p.h"
 
 #include <QtCore/qalgorithms.h>
+#include <QtGui/qscreen.h>
 
 QT_BEGIN_NAMESPACE
 
diff --git a/src/widgets/kernel/qwidgetwindow_p.h b/src/widgets/kernel/qwidgetwindow_p.h
index edf2383596..a81355160e 100644
--- a/src/widgets/kernel/qwidgetwindow_p.h
+++ b/src/widgets/kernel/qwidgetwindow_p.h
@@ -56,6 +56,7 @@
 
 #include <QtCore/private/qobject_p.h>
 #include <QtGui/private/qevent_p.h>
+#include <QtWidgets/qwidget.h>
 
 QT_BEGIN_NAMESPACE