diff --git a/AppKit/CoreAnimation/CAAnimation.j b/AppKit/CoreAnimation/CAAnimation.j
index fbaca60fd..8303b7ef4 100644
--- a/AppKit/CoreAnimation/CAAnimation.j
+++ b/AppKit/CoreAnimation/CAAnimation.j
@@ -31,6 +31,7 @@
 @implementation CAAnimation : CPObject
 {
     BOOL    _isRemovedOnCompletion;
+    id      _delegate;
 }
 
 /*!