diff --git a/htdocs/core/class/html.form.class.php b/htdocs/core/class/html.form.class.php
index 08bc3b4c85e..f782b06e7e2 100755
--- a/htdocs/core/class/html.form.class.php
+++ b/htdocs/core/class/html.form.class.php
@@ -1896,7 +1896,7 @@ class Form
             // mode=2 means suppliers products
             $urloption=($socid > 0?'socid='.$socid.'&':'').'htmlname='.$htmlname.'&outjson=1&price_level='.$price_level.'&type='.$filtertype.'&mode=2&status='.$status.'&finished='.$finished;
             print ajax_autocompleter('', $htmlname, DOL_URL_ROOT.'/product/ajax/products.php', $urloption, $conf->global->PRODUIT_USE_SEARCH_TO_SELECT, 0, $ajaxoptions);
-            print ($hidelabel?'':$langs->trans("RefOrLabel").' : ').'<input type="text" size="16" name="search_'.$htmlname.'" id="search_'.$htmlname.'">';
+            print ($hidelabel?'':$langs->trans("RefOrLabel").' : ').'<input type="text" size="20" name="search_'.$htmlname.'" id="search_'.$htmlname.'">';
         }
         else
         {