diff --git a/src/meta/prefs.h b/src/meta/prefs.h
index 2ea8bd4b9..bb94d2a31 100644
--- a/src/meta/prefs.h
+++ b/src/meta/prefs.h
@@ -449,7 +449,7 @@ typedef enum
  * MetaKeyHandlerFunc:
  * @display: a #MetaDisplay
  * @window: a #MetaWindow
- * @event: (type gpointer): a #ClutterEvent
+ * @event: a #ClutterEvent
  * @binding: a #MetaKeyBinding
  * @user_data: data passed to the function
  *