diff --git a/AppKit/CPApplication.j b/AppKit/CPApplication.j
index 9b122d845..f26e3b648 100644
--- a/AppKit/CPApplication.j
+++ b/AppKit/CPApplication.j
@@ -42,7 +42,7 @@ var CPMainCibFile               = @"CPMainCibFile",
     CPEventModifierFlags = 0;
 
 
-@protocol CPApplicationDelegate
+@protocol CPApplicationDelegate <CPObject>
 
 @optional
 - (void)applicationDidBecomeActive:(CPNotification)aNotification;