@@ -32,10 +32,11 @@
  */
 @interface OFConditionSignalFailedException: OFException
 {
 	OFCondition *_condition;
 	int _errNo;
+	OF_RESERVE_IVARS(OFConditionSignalFailedException, 4)
 }
 
 /**
  * @brief The condition which could not be signaled.
  */