diff --git a/htdocs/product/stats/facture.php b/htdocs/product/stats/facture.php
index d60c4d835a5..a11bfe14865 100644
--- a/htdocs/product/stats/facture.php
+++ b/htdocs/product/stats/facture.php
@@ -234,7 +234,9 @@ if ($id > 0 || ! empty($ref))
                     while ($i < min($num, $limit))
 					{
                         $objp = $db->fetch_object($result);
-
+						
+						if ($objp->type == Facture::TYPE_CREDIT_NOTE) $objp->qty=-($objp->qty); 
+						
                         $total_ht+=$objp->total_ht;
                         $total_qty+=$objp->qty;