@@ -26,10 +26,11 @@
  *        enumeration.
  */
 @interface OFEnumerationMutationException: OFException
 {
 	id _object;
+	OF_RESERVE_IVARS(OFEnumerationMutationException, 4)
 }
 
 /**
  * @brief The object which was mutated during enumeration.
  */