diff --git a/src/plugins/platforms/windows/qwindowswindow.cpp b/src/plugins/platforms/windows/qwindowswindow.cpp
index 81af784a75..6373b1f5f1 100644
--- a/src/plugins/platforms/windows/qwindowswindow.cpp
+++ b/src/plugins/platforms/windows/qwindowswindow.cpp
@@ -75,6 +75,7 @@
 
 #include <QtCore/QDebug>
 #include <QtCore/QLibraryInfo>
+#include <QtCore/qoperatingsystemversion.h>
 
 #include <dwmapi.h>