diff --git a/src/libcalamares/utils/PluginFactory.h b/src/libcalamares/utils/PluginFactory.h
index 958a7858a..65ee6eee9 100644
--- a/src/libcalamares/utils/PluginFactory.h
+++ b/src/libcalamares/utils/PluginFactory.h
@@ -101,7 +101,4 @@ public:
 #define CALAMARES_PLUGIN_FACTORY_DEFINITION( name, pluginRegistrations ) \
     K_PLUGIN_FACTORY_DEFINITION_WITH_BASEFACTORY( name, CalamaresPluginFactory, pluginRegistrations )
 
-
-Q_DECLARE_INTERFACE( CalamaresPluginFactory, CalamaresPluginFactory_iid )
-
 #endif