diff --git a/htdocs/compta/facture/class/api_invoices.class.php b/htdocs/compta/facture/class/api_invoices.class.php
index f41a2ee9ae0..e6a2be07184 100644
--- a/htdocs/compta/facture/class/api_invoices.class.php
+++ b/htdocs/compta/facture/class/api_invoices.class.php
@@ -508,15 +508,10 @@ class Invoices extends DolibarrApi
               $request_data->fk_parent_line = 0;
       }
 
-      $pa_ht = $request_data->pa_ht;
-
       // calculate pa_ht  
-      if ($pa_ht == 'auto')
-      {
-          $marginInfos = getMarginInfos($request_data->subprice, $request_data->remise_percent, $request_data->tva_tx, $request_data->localtax1_tx, $request_data->localtax2_tx, $request_data->fk_fournprice, $request_data->pa_ht);
-          $pa_ht = $marginInfos[0];
-      }
-
+      $marginInfos = getMarginInfos($request_data->subprice, $request_data->remise_percent, $request_data->tva_tx, $request_data->localtax1_tx, $request_data->localtax2_tx, $request_data->fk_fournprice, $request_data->pa_ht);
+      $pa_ht = $marginInfos[0];
+	    
       $updateRes = $this->invoice->addline(
                               $request_data->desc,
                               $request_data->subprice,