diff --git a/htdocs/cashdesk/class/Facturation.class.php b/htdocs/cashdesk/class/Facturation.class.php
index 32fa03ad48e87..3538a3908d1de 100644
--- a/htdocs/cashdesk/class/Facturation.class.php
+++ b/htdocs/cashdesk/class/Facturation.class.php
@@ -118,7 +118,7 @@ public function ajoutArticle()
         }
 
         // Define part of HT, VAT, TTC
-        $resultarray=calcul_price_total($this->qte,$this->prix(),$this->remisePercent(),$vat_rate,0,0,0,'HT',$product->type);
+        $resultarray=calcul_price_total($this->qte,$this->prix(),$this->remisePercent(),$vat_rate,0,0,0,'HT',$product->type,0);
 
         // Calcul du total ht sans remise
         $total_ht = $resultarray[0];