diff --git a/htdocs/product/fiche.php b/htdocs/product/fiche.php
index f3817028e15..d9ba420c8b5 100644
--- a/htdocs/product/fiche.php
+++ b/htdocs/product/fiche.php
@@ -684,7 +684,7 @@ else
         $tmpcode='';
 		if (! empty($modCodeProduct->code_auto))
 			$tmpcode=$modCodeProduct->getNextValue($object,$type);
-        print '<td class="fieldrequired" width="20%">'.$langs->trans("Ref").'</td><td><input name="ref" size="40" maxlength="32" value="'.dol_escape_htmltag(GETPOST('ref')?GETPOST('ref'):$tmpcode).'">';
+        print '<td class="fieldrequired" width="20%">'.$langs->trans("Ref").'</td><td><input name="ref" size="40" maxlength="128" value="'.dol_escape_htmltag(GETPOST('ref')?GETPOST('ref'):$tmpcode).'">';
         if ($_error)
         {
             print $langs->trans("RefAlreadyExists");
@@ -862,7 +862,7 @@ else
             print '<table class="border allwidth">';
 
             // Ref
-            print '<tr><td width="15%" class="fieldrequired">'.$langs->trans("Ref").'</td><td colspan="2"><input name="ref" size="40" maxlength="32" value="'.$object->ref.'"></td></tr>';
+            print '<tr><td width="15%" class="fieldrequired">'.$langs->trans("Ref").'</td><td colspan="2"><input name="ref" size="40" maxlength="128" value="'.$object->ref.'"></td></tr>';
 
             // Label
             print '<tr><td class="fieldrequired">'.$langs->trans("Label").'</td><td colspan="2"><input name="libelle" size="40" maxlength="255" value="'.$object->libelle.'"></td></tr>';