diff --git a/htdocs/commande/class/api_orders.class.php b/htdocs/commande/class/api_orders.class.php
index 56147545f36..3e5a1a4c210 100644
--- a/htdocs/commande/class/api_orders.class.php
+++ b/htdocs/commande/class/api_orders.class.php
@@ -312,7 +312,7 @@ class Orders extends DolibarrApi
      *
      * @url	PUT {id}/lines/{lineid}
      *
-     * @return object
+     * @return array|bool
      */
     public function putLine($id, $lineid, $request_data = null)
     {