diff --git a/htdocs/product/fournisseurs.php b/htdocs/product/fournisseurs.php
index 2fe78f11e99..049d5857252 100644
--- a/htdocs/product/fournisseurs.php
+++ b/htdocs/product/fournisseurs.php
@@ -508,9 +508,9 @@ if ($id > 0 || $ref) {
 				print '<tr><td class="fieldrequired">'.$langs->trans("SupplierRef").'</td><td>';
 				if ($rowid) {
 					print '<input type="hidden" name="ref_fourn_old" value="'.$object->ref_supplier.'">';
-					print '<input class="flat width150" maxlength="30" name="ref_fourn" value="'.$object->ref_supplier.'">';
+					print '<input class="flat width150" maxlength="128" name="ref_fourn" value="'.$object->ref_supplier.'">';
 				} else {
-					print '<input class="flat width150" maxlength="30" name="ref_fourn" value="'.(GETPOST("ref_fourn") ? GETPOST("ref_fourn") : '').'">';
+					print '<input class="flat width150" maxlength="128" name="ref_fourn" value="'.(GETPOST("ref_fourn") ? GETPOST("ref_fourn") : '').'">';
 				}
 				print '</td>';
 				print '</tr>';