diff --git a/src/Controller/JobOrderController.php b/src/Controller/JobOrderController.php
index 9095390c..401a7612 100644
--- a/src/Controller/JobOrderController.php
+++ b/src/Controller/JobOrderController.php
@@ -275,7 +275,7 @@ class JobOrderController extends BaseController
                 ->setLandmark($req->request->get('landmark'));
 
             // did they change invoice?
-            $invoice_items = $req->request->get('invoice_items');
+            $invoice_items = $req->request->get('invoice_items', []);
             $invoice_change = $req->request->get('invoice_change', 0);
             if ($invoice_change)
             {