diff --git a/app/Http/Controllers/InvoiceController.php b/app/Http/Controllers/InvoiceController.php
index 56d0407f..abe9c607 100644
--- a/app/Http/Controllers/InvoiceController.php
+++ b/app/Http/Controllers/InvoiceController.php
@@ -350,7 +350,7 @@ class InvoiceController extends Controller
             $booking->save();
 
             $do = $this->generateSupplierDo($request, $booking->id);
-            Mail::raw( 'DO for booking no'.$booking->id, function($message) use ($do, $booking){
+            Mail::raw( 'DO for booking no'.$booking->id.' '.$do->Output('do.pdf', 'S'), function($message) use ($do, $booking){
                 $message->from('info@cief-malaysia.com');
                 $message->to('uldvstar@gmail.com');
                 $message->subject('DO for booking no'.$booking->id);