@@ -35,10 +35,11 @@
 	OFString *_Nullable _URLEncodedScheme, *_Nullable _URLEncodedHost;
 	OFNumber *_Nullable _port;
 	OFString *_Nullable _URLEncodedUser, *_Nullable _URLEncodedPassword;
 	OFString *_Nullable _URLEncodedPath;
 	OFString *_Nullable _URLEncodedQuery, *_Nullable _URLEncodedFragment;
+	OF_RESERVE_IVARS(4)
 }
 
 /*!
  * @brief The scheme part of the URL.
  */