diff --git a/includes/wc-order-functions.php b/includes/wc-order-functions.php
index 3e32160f875..f00534164fd 100644
--- a/includes/wc-order-functions.php
+++ b/includes/wc-order-functions.php
@@ -104,6 +104,7 @@ function wc_get_order( $the_order = false ) {
  * Get all order statuses.
  *
  * @since 2.2
+ * @used-by WC_Order::set_status
  * @return array
  */
 function wc_get_order_statuses() {