diff --git a/puic/widgetinterface.h b/puic/widgetinterface.h
index 530d812..50f8e6d 100644
--- a/puic/widgetinterface.h
+++ b/puic/widgetinterface.h
@@ -24,6 +24,6 @@
 #include <private/qwidgetinterface_p.h>
 
 #define WidgetInterface TQWidgetFactoryInterface
-#define IID_Widget IID_TQWidgetFactory
+#define IID_Widget IID_QWidgetFactory
 
 #endif