@@ -28,10 +28,11 @@
  */
 @interface OFCreateDirectoryFailedException: OFException
 {
 	OFURL *_URL;
 	int _errNo;
+	OF_RESERVE_IVARS(OFCreateDirectoryFailedException, 4)
 }
 
 /**
  * @brief The URL of the directory which couldn't be created.
  */