@@ -130,11 +130,12 @@
  *		  accepted options, terminated with an option whose short
  *		  option is `\0` and long option is `nil`.
  *
  * @return An initialized OFOptionsParser
  */
-- initWithOptions: (const of_options_parser_option_t *)options;
+- initWithOptions: (const of_options_parser_option_t *)options
+    OF_DESIGNATED_INITIALIZER;
 
 /*!
  * @brief Returns the next option.
  *
  * If the option is only available as a long option, `-` is returned.