@@ -66,9 +66,9 @@
  * @param namespace_ The namespace which is unbound
  * @param element The element in which the namespace was not bound
  * @return An initialized unbound namespace exception
  */
 - initWithNamespace: (OFString *)namespace_
-	    element: (OFXMLElement *)element;
+	    element: (OFXMLElement *)element OF_DESIGNATED_INITIALIZER;
 @end
 
 OF_ASSUME_NONNULL_END