diff --git a/htdocs/product/stats/facture.php b/htdocs/product/stats/facture.php
index d60c4d835a5..00f9c84338e 100644
--- a/htdocs/product/stats/facture.php
+++ b/htdocs/product/stats/facture.php
@@ -234,7 +234,8 @@ 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;
 
diff --git a/htdocs/societe/consumption.php b/htdocs/societe/consumption.php
index afd3a51ec8e..1c5c4b82a5d 100644
--- a/htdocs/societe/consumption.php
+++ b/htdocs/societe/consumption.php
@@ -595,7 +595,7 @@ if ($sql_select)
 		print '</td>';
 
 		//print '<td class="left">'.$prodreftxt.'</td>';
-
+		if ($type_element == 'invoice' && $objp->doc_type == Facture::TYPE_CREDIT_NOTE) $objp->prod_qty=-($objp->prod_qty);
 		print '<td class="right">'.$objp->prod_qty.'</td>';
 		$total_qty+=$objp->prod_qty;