@@ -239,11 +239,11 @@
  * @brief Returns a C string describing the specified request method.
  *
  * @param method The request method which should be described as a C string
  * @return A C string describing the specified request method
  */
-extern const char *OF_NULLABLE of_http_request_method_to_string(
+extern const char *_Nullable of_http_request_method_to_string(
     of_http_request_method_t method);
 
 /*!
  * @brief Returns the request method for the specified string.
  *