diff --git a/htdocs/product/fournisseurs.php b/htdocs/product/fournisseurs.php
index b6f09346385..98700c90fb3 100644
--- a/htdocs/product/fournisseurs.php
+++ b/htdocs/product/fournisseurs.php
@@ -507,11 +507,11 @@ if ($id > 0 || $ref)
 				if ($rowid)
 				{
                     print '<input type="hidden" name="ref_fourn_old" value="'.$object->ref_supplier.'">';
-                    print '<input class="flat" name="ref_fourn" size="12" value="'.$object->ref_supplier.'">';
+                    print '<input class="flat width150" maxlength="30" name="ref_fourn" size="12" value="'.$object->ref_supplier.'">';
 				}
 				else
 				{
-					print '<input class="flat" name="ref_fourn" size="12" value="'.(GETPOST("ref_fourn") ?GETPOST("ref_fourn") : '').'">';
+					print '<input class="flat width150" maxlength="30" name="ref_fourn" size="12" value="'.(GETPOST("ref_fourn") ?GETPOST("ref_fourn") : '').'">';
 				}
 				print '</td>';
 				print '</tr>';