@@ -29,10 +29,11 @@
 {
 	OFURL *_Nullable _URL;
 	OFString *_Nullable _path;
 	OFString *_mode;
 	int _errNo;
+	OF_RESERVE_IVARS(OFOpenItemFailedException, 4)
 }
 
 /**
  * @brief The URL of the item which could not be opened.
  */