diff --git a/src/gui/util/qlayoutpolicy_p.h b/src/gui/util/qlayoutpolicy_p.h
index a729a57e8b9..993bf714721 100644
--- a/src/gui/util/qlayoutpolicy_p.h
+++ b/src/gui/util/qlayoutpolicy_p.h
@@ -66,6 +66,7 @@ class QVariant;
 
 class Q_GUI_EXPORT QLayoutPolicy
 {
+    Q_GADGET
     Q_ENUMS(Policy)
 
 public: