diff --git a/src/Controller/APIController.php b/src/Controller/APIController.php
index 63babac0..e7a96ded 100644
--- a/src/Controller/APIController.php
+++ b/src/Controller/APIController.php
@@ -3081,14 +3081,14 @@ class APIController extends Controller implements LoggedController
         // $cust = $this->updateCustomerInfo($req, $em);
 
         // update warranty
-        $res = $this->updateWarranty($res, $em, $trans, $req, $serial, $inv_filename, $wcard_filename);
+        $res = $this->updateWarranty($res, $em, $rt, $trans, $req, $serial, $inv_filename, $wcard_filename);
 
         $em->flush();
 
         return $res->getReturnResponse();
     }
 
-    protected function updateWarranty($res, $em, $trans, $req, $serial, $inv_filename = null, $wcard_filename = null)
+    protected function updateWarranty($res, $em, $rt, $trans, $req, $serial, $inv_filename = null, $wcard_filename = null)
     {
         // get serial
         $warr_serial = $em->getRepository(WarrantySerial::class)->find($serial);