diff --git a/core/modules/system/system.api.php b/core/modules/system/system.api.php
index b830cde..6da42f7 100644
--- a/core/modules/system/system.api.php
+++ b/core/modules/system/system.api.php
@@ -339,7 +339,7 @@ function hook_library_info_alter(&$libraries, $module) {
  * @param string $name
  *   The name of the library.
  *
- * @see drupal_add_library()
+ * @see _drupal_add_library()
  */
 function hook_library_alter(array &$library, $extension, $name) {
   if ($extension == 'core' && $name == 'jquery.ui.datepicker') {