diff --git a/htdocs/fourn/commande/index.php b/htdocs/fourn/commande/index.php
index 904f98b8e4e..def3eceabca 100644
--- a/htdocs/fourn/commande/index.php
+++ b/htdocs/fourn/commande/index.php
@@ -27,6 +27,7 @@
 
 require("../../main.inc.php");
 require_once(DOL_DOCUMENT_ROOT."/contact/contact.class.php");
+require_once(DOL_DOCUMENT_ROOT."/fourn/fournisseur.commande.class.php");
 
 // Security check
 $orderid = isset($_GET["orderid"])?$_GET["orderid"]:'';