diff --git a/src/dbus/qdbuserror.h b/src/dbus/qdbuserror.h
index bcf68dbcdc..312bac71de 100644
--- a/src/dbus/qdbuserror.h
+++ b/src/dbus/qdbuserror.h
@@ -41,6 +41,7 @@
 #define QDBUSERROR_H
 
 #include <QtDBus/qtdbusglobal.h>
+#include <QtCore/qobjectdefs.h>
 #include <QtCore/qstring.h>
 
 #ifndef QT_NO_DBUS
@@ -54,6 +55,7 @@ class QDBusMessage;
 
 class Q_DBUS_EXPORT QDBusError
 {
+    Q_GADGET
 public:
     enum ErrorType {
         NoError = 0,
@@ -90,6 +92,7 @@ public:
         LastErrorType = InvalidMember
 #endif
     };
+    Q_ENUM(ErrorType)
 
     QDBusError();
 #ifndef QT_BOOTSTRAPPED