diff --git a/htdocs/product/card.php b/htdocs/product/card.php
index d386132813e..f06009ecfa7 100644
--- a/htdocs/product/card.php
+++ b/htdocs/product/card.php
@@ -1954,7 +1954,7 @@ if ($action == '' || $action == 'view')
 
     $var=true;
     
-    $somethingshown=$formfile->show_documents($modulepart,$object->id,$filedir,$urlsource,$genallowed,$delallowed,'',0,0,0,28,0,'',0,'',$object->default_lang);
+    $somethingshown=$formfile->show_documents($modulepart,$object->ref,$filedir,$urlsource,$genallowed,$delallowed,'',0,0,0,28,0,'',0,'',$object->default_lang);
 
     print '</div><div class="fichehalfright"><div class="ficheaddleft">';