diff --git a/src/wp-includes/category-template.php b/src/wp-includes/category-template.php
index e09551736a..18c041fed7 100644
--- a/src/wp-includes/category-template.php
+++ b/src/wp-includes/category-template.php
@@ -534,6 +534,9 @@ function wp_dropdown_categories( $args = '' ) {
* the list. Default false (title will always be shown).
* @type int $depth Category depth. Used for tab indentation. Default 0.
* @type string $taxonomy Taxonomy name. Default 'category'.
+ * @type string $style The style used to display the categories list. If 'list', categories
+ * will be output as an unordered list. If left empty or another value,
+ * categories will be output separated by `
` tags. Default 'list'.
* @type string $separator Separator between links. Default '
'.
* }
* @return false|string HTML content only if 'echo' argument is 0.