diff --git a/include/XMLDocument/InvoiceUBL21.php b/include/XMLDocument/InvoiceUBL21.php
index 15bb31dfd..009d2b210 100644
--- a/include/XMLDocument/InvoiceUBL21.php
+++ b/include/XMLDocument/InvoiceUBL21.php
@@ -498,7 +498,7 @@ class InvoiceUBL21 extends XMLInvoice {
         $item->appendChild($classifiedTaxCat);
         $result->appendChild($item);
         $price=$result->appendChild($this->createElement("cac:Price"));
-        $price->appendChild($this->createElement("cbc:PriceAmount",sprintf("%.2f",abs($amount))))
+        $price->appendChild($this->createElement("cbc:PriceAmount",sprintf("%.2f",abs($row['price_unit']))))
                 ->setAttribute("currencyID",$this->data['currency']);
         $result->appendChild($price);
             
diff --git a/include/XMLDocument/XMLInvoice.php b/include/XMLDocument/XMLInvoice.php
index f5f66912e..63f6d1e04 100644
--- a/include/XMLDocument/XMLInvoice.php
+++ b/include/XMLDocument/XMLInvoice.php
@@ -201,9 +201,14 @@ abstract class XMLInvoice extends \DOMDocument
             // $operation->det->currency_id == 0  default currency of the folder
             if ($operation->det->currency_id == 0 ) {
                 $result['operation'][$i]['price']=$operation->det->array[$i]['qs_price'];
+                $result['operation'][$i]['price_unit']=$operation->det->array[$i]['qs_unit'];
                 $result['operation'][$i]['vat']=$operation->det->array[$i]['qs_vat'];
             } else {
                 $result['operation'][$i]['price']=$operation->det->array[$i]['oc_amount'];
+                $result['operation'][$i]['price_unit']=bcdiv(
+                        $operation->det->array[$i]['oc_amount'],
+                        $operation->det->array[$i]['qs_quantite'],
+                        2);
                 $result['operation'][$i]['vat']=$operation->det->array[$i]['oc_vat_amount'];
                 
             }