diff --git a/AppKit/CPKeyValueBinding.j b/AppKit/CPKeyValueBinding.j
index eda0dc8e3..64ef1f583 100644
--- a/AppKit/CPKeyValueBinding.j
+++ b/AppKit/CPKeyValueBinding.j
@@ -247,7 +247,7 @@ var CPBindingOperationAnd = 0,
         valueTransformer = [options objectForKey:CPValueTransformerBindingOption];
 
     if (valueTransformer && [[valueTransformer class] allowsReverseTransformation])
-        aValue = [valueTransformer transformedValue:aValue];
+        aValue = [valueTransformer reverseTransformedValue:aValue];
 
     return aValue;
 }