diff --git a/core/includes/language.inc b/core/includes/language.inc
index f96928e..0892cc4 100644
--- a/core/includes/language.inc
+++ b/core/includes/language.inc
@@ -77,8 +77,9 @@ const LANGUAGE_NEGOTIATION_DEFAULT = 'language-default';
  * @code
  * function mymodule_language_negotiation_info_alter(&$negotiation_info) {
  *   // Replace the core function with our own function.
- *   $negotiation_info[LOCALE_LANGUAGE_NEGOTIATION_URL]['callbacks']['negotiation'] = 'mymodule_from_url';
- *   $negotiation_info[LOCALE_LANGUAGE_NEGOTIATION_URL]['file'] = drupal_get_path('module', 'mymodule') . '/mymodule.module';
+ *   module_load_include('language', 'inc', 'language.negotiation');
+ *   $negotiation_info[LANGUAGE_NEGOTIATION_URL]['callbacks']['negotiation'] = 'mymodule_from_url';
+ *   $negotiation_info[LANGUAGE_NEGOTIATION_URL]['file'] = drupal_get_path('module', 'mymodule') . '/mymodule.module';
  * }
  *
  * function mymodule_from_url($languages) {
@@ -158,8 +159,8 @@ function language_types_info() {
  * Returns only the configurable language types.
  *
  * A language type maybe configurable or fixed. A fixed language type is a type
- * whose language negotiation methods are unchangeable (defined by the module
- * that defines the language type).
+ * whose language negotiation methods are module-defined and not altered through
+ * the user interface.
  *
  * @param $stored
  *   (optional) By default, retrieves values from the 'language_types' variable