diff --git a/htdocs/product/list.php b/htdocs/product/list.php
index f46767c8969..279f96882b7 100644
--- a/htdocs/product/list.php
+++ b/htdocs/product/list.php
@@ -749,19 +749,19 @@ if ($resql)
 			{
 				print '<td align="center">';
         			
-        $obj->duration_value				= substr($obj->duration,0,dol_strlen($obj->duration)-1);
-				$obj->duration_unit				= substr($obj->duration,-1);
+				$duration_value	= substr($obj->duration,0,dol_strlen($obj->duration)-1);
+				$duration_unit	= substr($obj->duration,-1);
          
-                if ($obj->duration_value > 1)
-                {
-                    $dur=array("i"=>$langs->trans("Minutes"),"h"=>$langs->trans("Hours"),"d"=>$langs->trans("Days"),"w"=>$langs->trans("Weeks"),"m"=>$langs->trans("Months"),"y"=>$langs->trans("Years"));
-                }
-                else if ($obj->duration_value > 0)
-                {
-                    $dur=array("i"=>$langs->trans("Minute"),"h"=>$langs->trans("Hour"),"d"=>$langs->trans("Day"),"w"=>$langs->trans("Week"),"m"=>$langs->trans("Month"),"y"=>$langs->trans("Year"));
-                }
-                print $obj->duration_value."&nbsp;";	
-                print (! empty($obj->duration_unit) && isset($dur[$obj->duration_unit]) ? $langs->trans($dur[$obj->duration_unit]) : '');          
+				if ($duration_value > 1)
+				{
+				    $dur=array("i"=>$langs->trans("Minutes"),"h"=>$langs->trans("Hours"),"d"=>$langs->trans("Days"),"w"=>$langs->trans("Weeks"),"m"=>$langs->trans("Months"),"y"=>$langs->trans("Years"));
+				}
+				else if ($duration_value > 0)
+				{
+				    $dur=array("i"=>$langs->trans("Minute"),"h"=>$langs->trans("Hour"),"d"=>$langs->trans("Day"),"w"=>$langs->trans("Week"),"m"=>$langs->trans("Month"),"y"=>$langs->trans("Year"));
+				}
+				print $duration_value." ";	
+				print (! empty($duration_unit) && isset($dur[$duration_unit]) ? $langs->trans($dur[$duration_unit]) : '');
           
 				print '</td>';
 				if (! $i) $totalarray['nbfield']++;