diff --git a/htdocs/compta/facture/card.php b/htdocs/compta/facture/card.php
index 93ce8bc0f5f..34a051508f8 100644
--- a/htdocs/compta/facture/card.php
+++ b/htdocs/compta/facture/card.php
@@ -345,15 +345,6 @@ if (empty($reshook))
 		}
 	}
 
-	elseif ($action == 'set_thirdparty' && $usercancreate)
-	{
-		$object->fetch($id);
-		$object->setValueFrom('fk_soc', $socid, '', null, 'int', '', $user, 'BILL_MODIFY');
-
-		header('Location: '.$_SERVER["PHP_SELF"].'?facid='.$id);
-		exit();
-	}
-
 	elseif ($action == 'classin' && $usercancreate)
 	{
 		$object->fetch($id);