diff --git a/src/wp-includes/revision.php b/src/wp-includes/revision.php
index 2f482e0ceb..03c04666a9 100644
--- a/src/wp-includes/revision.php
+++ b/src/wp-includes/revision.php
@@ -411,7 +411,10 @@ function wp_delete_post_revision( $revision_id ) {
  *
  * @since 2.6.0
  *
- * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global $post.
+ * @see get_children()
+ *
+ * @param int|WP_Post $post_id Optional. Post ID or WP_Post object. Default is global `$post`.
+ * @param array|null  $args    Optional. Arguments for retrieving post revisions. Default null.
  * @return array An array of revisions, or an empty array if none.
  */
 function wp_get_post_revisions( $post_id = 0, $args = null ) {