@@ -78,9 +78,9 @@
  * @return An initialized change owner failed exception
  */
 - initWithPath: (OFString *)path
 	 owner: (nullable OFString *)owner
 	 group: (nullable OFString *)group
-	 errNo: (int)errNo;
+	 errNo: (int)errNo OF_DESIGNATED_INITIALIZER;
 @end
 
 OF_ASSUME_NONNULL_END