diff --git a/src/wp-includes/category-template.php b/src/wp-includes/category-template.php
index e3729df..b23a476 100644
--- a/src/wp-includes/category-template.php
+++ b/src/wp-includes/category-template.php
@@ -494,6 +494,8 @@ function wp_dropdown_categories( $args = '' ) {
  *                                               the list. Default false (title will always be shown).
  *     @type bool         $hierarchical          Whether to include terms that have non-empty descendants.
  *                                               See get_terms(). Default true.
+ *     @type array|string $include               Array or comma/space-separated string of term ids to include.
+ *                                               See get_terms(). Default empty string.
  *     @type string       $order                 Which direction to order categories. Accepts 'ASC' or 'DESC'.
  *                                               Default 'ASC'.
  *     @type string       $orderby               The column to use for ordering categories. Default 'name'.
@@ -527,6 +529,7 @@ function wp_list_categories( $args = '' ) {
 		'hide_empty'          => 1,
 		'hide_title_if_empty' => false,
 		'hierarchical'        => true,
+		'include'             => '',
 		'order'               => 'ASC',
 		'orderby'             => 'name',
 		'separator'           => '<br />',