diff --git a/htdocs/fourn/class/fournisseur.facture.class.php b/htdocs/fourn/class/fournisseur.facture.class.php
index 309230a4dcc..4642c0bf753 100644
--- a/htdocs/fourn/class/fournisseur.facture.class.php
+++ b/htdocs/fourn/class/fournisseur.facture.class.php
@@ -1386,7 +1386,7 @@ class FactureFournisseur extends CommonInvoice
      *
      *  FIXME Add field ref (that should be named ref_supplier) and label into update. For example can be filled when product line created from order.
      */
-    public function addline($desc, $pu, $txtva, $txlocaltax1, $txlocaltax2, $qty, $fk_product=0, $remise_percent=0, $date_start='', $date_end='', $ventil=0, $info_bits='', $price_base_type='HT', $type=0, $rang=-1, $notrigger=false, $array_options=0, $fk_unit=null, $origin_id=0, $pu_ht_devise=0, $ref_supplier='')
+    public function addline($desc, $pu, $txtva, $txlocaltax1, $txlocaltax2, $qty, $fk_product=0, $remise_percent=0, $date_start='', $date_end='', $ventil=0, $info_bits='', $price_base_type='HT', $type=0, $rang=-1, $notrigger=false, $array_options=0, $fk_unit=null, $origin_id=0, $pu_ht_devise=0, $ref_supplier='', $special_code='')
     {
         dol_syslog(get_class($this)."::addline $desc,$pu,$qty,$txtva,$fk_product,$remise_percent,$date_start,$date_end,$ventil,$info_bits,$price_base_type,$type,$fk_unit", LOG_DEBUG);
         include_once DOL_DOCUMENT_ROOT.'/core/lib/price.lib.php';
@@ -1481,7 +1481,7 @@ class FactureFournisseur extends CommonInvoice
 			$this->line->total_localtax1=$total_localtax1;
 			$this->line->total_localtax2=$total_localtax2;
 			$this->line->total_ttc=      (($this->type==self::TYPE_CREDIT_NOTE||$qty<0)?-abs($total_ttc):$total_ttc);
-			$this->line->special_code=$this->special_code;
+			$this->line->special_code=((string) $special_code != '' ? $special_code : $this->special_code);
 			$this->line->fk_parent_line=$this->fk_parent_line;
 			$this->line->origin=$this->origin;
 			$this->line->origin_id=$origin_id;
diff --git a/htdocs/fourn/facture/card.php b/htdocs/fourn/facture/card.php
index cc9164b753f..3e7df0b27f3 100644
--- a/htdocs/fourn/facture/card.php
+++ b/htdocs/fourn/facture/card.php
@@ -716,7 +716,10 @@ if (empty($reshook))
 									0,
 									$lines[$i]->array_options,
 									$lines[$i]->fk_unit,
-									$lines[$i]->id
+									$lines[$i]->id,
+									0,
+									'',
+									$lines[$i]->special_code
 								);
 
 								if ($result < 0)