diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 899005c8232..f5553032a09 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -2916,7 +2916,7 @@ abstract class CommonObject
 			$MODULE = "MODULE_DISALLOW_UPDATE_PRICE_ORDER";
 		elseif ($this->element == 'facture' || $this->element == 'invoice')
 			$MODULE = "MODULE_DISALLOW_UPDATE_PRICE_INVOICE";
-		elseif ($this->element == 'facture_fourn' || $this->element == 'supplier_invoice')
+		elseif ($this->element == 'facture_fourn' || $this->element == 'supplier_invoice' || $this->element == 'invoice_supplier')
 			$MODULE = "MODULE_DISALLOW_UPDATE_PRICE_SUPPLIER_INVOICE";
 		elseif ($this->element == 'order_supplier' || $this->element == 'supplier_order')
 			$MODULE = "MODULE_DISALLOW_UPDATE_PRICE_SUPPLIER_ORDER";
diff --git a/htdocs/fourn/class/fournisseur.facture.class.php b/htdocs/fourn/class/fournisseur.facture.class.php
index 8b07b0fbebe..bdfdbb360d8 100644
--- a/htdocs/fourn/class/fournisseur.facture.class.php
+++ b/htdocs/fourn/class/fournisseur.facture.class.php
@@ -859,7 +859,10 @@ class FactureFournisseur extends CommonInvoice
 					$line->multicurrency_total_tva = $obj->multicurrency_total_tva;
 					$line->multicurrency_total_ttc = $obj->multicurrency_total_ttc;
 
-	                $this->lines[$i] = $line;
+	                // Extra fields
+					$line->fetch_optionals();
+
+					$this->lines[$i] = $line;
 
                     $i++;
                 }