@@ -35,11 +35,11 @@
 @property (readonly) SEL selector;
 
 /*!
  * The object which does not (fully) implement the selector.
  */
-@property (readonly, retain) id object;
+@property (readonly, nonatomic) id object;
 
 /*!
  * @brief Creates a new, autoreleased not implemented exception.
  *
  * @param selector The selector which is not or not fully implemented