diff --git a/src/libcalamares/utils/PluginFactory.h b/src/libcalamares/utils/PluginFactory.h
index 86fe1d4cf..958a7858a 100644
--- a/src/libcalamares/utils/PluginFactory.h
+++ b/src/libcalamares/utils/PluginFactory.h
@@ -102,6 +102,6 @@ public:
     K_PLUGIN_FACTORY_DEFINITION_WITH_BASEFACTORY( name, CalamaresPluginFactory, pluginRegistrations )
 
 
-// Q_DECLARE_INTERFACE( CalamaresPluginFactory, CalamaresPluginFactory_iid )
+Q_DECLARE_INTERFACE( CalamaresPluginFactory, CalamaresPluginFactory_iid )
 
 #endif