diff --git a/src/plugins/qmldesignerbase/utils/windowmanager.cpp b/src/plugins/qmldesignerbase/utils/windowmanager.cpp
index e00a19fb6d9..6c427fe63fe 100644
--- a/src/plugins/qmldesignerbase/utils/windowmanager.cpp
+++ b/src/plugins/qmldesignerbase/utils/windowmanager.cpp
@@ -8,6 +8,7 @@
 #include <QCursor>
 #include <QGuiApplication>
 #include <QMainWindow>
+#include <QRect>
 #include <QScreen>
 #include <QWindow>
 
diff --git a/src/plugins/qmldesignerbase/utils/windowmanager.h b/src/plugins/qmldesignerbase/utils/windowmanager.h
index 01444ce43dc..11f4522102f 100644
--- a/src/plugins/qmldesignerbase/utils/windowmanager.h
+++ b/src/plugins/qmldesignerbase/utils/windowmanager.h
@@ -8,6 +8,7 @@
 #include <QPoint>
 #include <QtQml/qqml.h>
 
+QT_FORWARD_DECLARE_CLASS(QRect)
 QT_FORWARD_DECLARE_CLASS(QWindow)
 
 namespace QmlDesigner {