diff --git a/basis/cocoa/subclassing/subclassing.factor b/basis/cocoa/subclassing/subclassing.factor
index 59635f96df..1ee39c35d5 100755
--- a/basis/cocoa/subclassing/subclassing.factor
+++ b/basis/cocoa/subclassing/subclassing.factor
@@ -43,25 +43,25 @@ IN: cocoa.subclassing
 : types= ( a b -- ? )
     [ ascii alien>string ] bi@ = ;
 
-! : (verify-method-type) ( class sel types -- )
-!     [ class_getInstanceMethod method_getTypeEncoding ]
-!     dip types=
-!     [ "Objective-C method types cannot be changed once defined" throw ]
-!     unless ;
-! : verify-method-type ( class sel imp types -- class sel imp types )
-!     4 ndup nip (verify-method-type) ;
+: (verify-method-type) ( class sel types -- )
+    [ class_getInstanceMethod method_getTypeEncoding ]
+    dip types=
+    [ "Objective-C method types cannot be changed once defined" throw ]
+    unless ;
+: verify-method-type ( class sel imp types -- class sel imp types )
+    4 ndup nip (verify-method-type) ;
 
-! : (redefine-objc-method) ( class method -- )
-!     init-method ! verify-method-type
-!     drop
-!     [ class_getInstanceMethod ] dip method_setImplementation drop ;
-!     
-! : redefine-objc-methods ( imeth name -- )
-!     dup class-exists? [
-!         objc_getClass swap [ (redefine-objc-method) ] with each
-!     ] [
-!         2drop
-!     ] if ;
+: (redefine-objc-method) ( class method -- )
+    init-method ! verify-method-type
+    drop
+    [ class_getInstanceMethod ] dip method_setImplementation drop ;
+    
+: redefine-objc-methods ( imeth name -- )
+    dup class-exists? [
+        objc_getClass swap [ (redefine-objc-method) ] with each
+    ] [
+        2drop
+    ] if ;
 
 SYMBOL: +name+
 SYMBOL: +protocols+
@@ -71,7 +71,7 @@ SYMBOL: +superclass+
     clone [
         prepare-methods
         +name+ get "cocoa.classes" create drop
-        +name+ get swap [
+        +name+ get 2dup redefine-objc-methods swap [
             +protocols+ get , +superclass+ get , +name+ get , ,
             \ (define-objc-class) ,
         ] [ ] make import-objc-class