diff --git a/AppKit/CPWindow/CPWindow.j b/AppKit/CPWindow/CPWindow.j
index 14b360360..da652923b 100644
--- a/AppKit/CPWindow/CPWindow.j
+++ b/AppKit/CPWindow/CPWindow.j
@@ -93,9 +93,9 @@ var CPWindowActionMessageKeys = [
     Sent from the notification center when the window has been resized.
     @param notification contains information about the resize event
 
-    @delegate  -(CPUndoManager)windowWillReturnUndoManager:(CPWindow)window;
+    @delegate  -(CPUndoManager)windowWillReturnUndoManager:(CPWindow)aWindow;
     Called to obtain the undo manager for a window
-    @param window the window for which to return the undo manager
+    @param aWindow the window for which to return the undo manager
     @return the window's undo manager
 
     @delegate -(void)windowDidBecomeMain:(CPNotification)notification;
@@ -113,9 +113,9 @@ var CPWindowActionMessageKeys = [
     resigned key window status.
     @param notification contains information about the event
 
-    @delegate -(BOOL)windowShouldClose:(id)window;
+    @delegate -(BOOL)windowShouldClose:(id)aWindow;
     Called when the user tries to close the window.
-    @param window the window to close
+    @param aWindow the window to close
     @return \c YES allows the window to close. \c NO
     vetoes the close operation and leaves the window open.