diff --git a/AppKit/CPKeyValueBinding.j b/AppKit/CPKeyValueBinding.j
index 3aabc98a6..a926cdd2b 100644
--- a/AppKit/CPKeyValueBinding.j
+++ b/AppKit/CPKeyValueBinding.j
@@ -263,7 +263,7 @@ var CPBindingOperationAnd = 0,
     //    CPLog.warn("No binding exposed on "+self+" for "+aBinding);
 
     [self unbind:aBinding];
-    [[CPKeyValueBinding alloc] initWithBinding:[anObject _replacementKeyPathForBinding:aBinding] name:aBinding to:anObject keyPath:aKeyPath options:options from:self];
+    [[CPKeyValueBinding alloc] initWithBinding:[self _replacementKeyPathForBinding:aBinding] name:aBinding to:anObject keyPath:aKeyPath options:options from:self];
 }
 
 - (CPDictionary)infoForBinding:(CPString)aBinding