@@ -23,10 +23,11 @@
  * @brief An exception indicating an object is not open, connected or bound.
  */
 @interface OFNotOpenException: OFException
 {
 	id _object;
+	OF_RESERVE_IVARS(OFNotOpenException, 4)
 }
 
 /**
  * @brief The object which is not open, connected or bound.
  */