diff --git a/htdocs/fourn/commande/card.php b/htdocs/fourn/commande/card.php
index 29b8d809123..5ad7b3cbe1f 100644
--- a/htdocs/fourn/commande/card.php
+++ b/htdocs/fourn/commande/card.php
@@ -121,6 +121,7 @@ include DOL_DOCUMENT_ROOT.'/core/actions_setnotes.inc.php';	// Must be include,
 
 if ($action == 'setref_supplier' && $user->rights->fournisseur->commande->creer)
 {
+	$object->ref_supplier=GETPOST('ref_supplier','alpha'); // ADD : ref_supplier to object property, otherwise not visibly updated on change
     $result=$object->setValueFrom('ref_supplier',GETPOST('ref_supplier','alpha'));
     if ($result < 0) dol_print_error($db, $object->error);
 }