diff --git a/src/imports/audioengine/audioengine.cpp b/src/imports/audioengine/audioengine.cpp
index 8eb2dea337b607c6c5af7c8fff53ff2f9093a745..a132af49ad23793608d3843e97ada62fde92c795 100644
--- a/src/imports/audioengine/audioengine.cpp
+++ b/src/imports/audioengine/audioengine.cpp
@@ -63,7 +63,7 @@ QT_BEGIN_NAMESPACE
 class QAudioEngineDeclarativeModule : public QQmlExtensionPlugin
 {
     Q_OBJECT
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface/1.0")
+    Q_PLUGIN_METADATA(IID QQmlExtensionInterface_iid)
 
 public:
     QAudioEngineDeclarativeModule(QObject *parent = 0) : QQmlExtensionPlugin(parent) { initResources(); }
diff --git a/src/imports/multimedia/multimedia.cpp b/src/imports/multimedia/multimedia.cpp
index 872b2ae610f5a1d18156bb60bdaa91b629cd0335..2a5e8cd2c3bcff123f0cadc68f8579c043c1cb45 100644
--- a/src/imports/multimedia/multimedia.cpp
+++ b/src/imports/multimedia/multimedia.cpp
@@ -81,7 +81,7 @@ static QObject *multimedia_global_object(QQmlEngine *qmlEngine, QJSEngine *jsEng
 class QMultimediaDeclarativeModule : public QQmlExtensionPlugin
 {
     Q_OBJECT
-    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QQmlExtensionInterface/1.0")
+    Q_PLUGIN_METADATA(IID QQmlExtensionInterface_iid)
 
 public:
     QMultimediaDeclarativeModule(QObject *parent = 0) : QQmlExtensionPlugin(parent) { initResources(); }