diff --git a/htdocs/product/class/product.class.php b/htdocs/product/class/product.class.php
index 748388ff99c..ecb90bb66ce 100644
--- a/htdocs/product/class/product.class.php
+++ b/htdocs/product/class/product.class.php
@@ -2946,7 +2946,7 @@ class Product extends CommonObject
 					// Objet
 					$obj=array();
 					$obj['photo']=$photo;
-					if ($photo_vignette && dol_is_file($dirthumb.$photo_vignette)) $obj['photo_vignette']=$dirthumb . $photo_vignette;
+					if ($photo_vignette && dol_is_file($dirthumb.$photo_vignette)) $obj['photo_vignette']='thumbs/' . $photo_vignette;
 					else $obj['photo_vignette']="";
 
 					$tabobj[$nbphoto-1]=$obj;