diff --git a/src/wp-admin/includes/misc.php b/src/wp-admin/includes/misc.php
index 541565e156..6b3e4a5347 100644
--- a/src/wp-admin/includes/misc.php
+++ b/src/wp-admin/includes/misc.php
@@ -313,6 +313,10 @@ function wp_make_theme_file_tree( $allowed_files ) {
  * @since 4.9.0
  * @access private
  *
+ * @global string $relative_file Name of the file being edited relative to the
+ *                               theme directory.
+ * @global string $stylesheet    The stylesheet name of the theme being edited.
+ *
  * @param array|string $tree  List of file/folder paths, or filename.
  * @param int          $level The aria-level for the current iteration.
  * @param int          $size  The aria-setsize for the current iteration.