diff --git a/src/Illuminate/Notifications/NotificationSender.php b/src/Illuminate/Notifications/NotificationSender.php
index 8623c2442181..5ce2e3cefc76 100644
--- a/src/Illuminate/Notifications/NotificationSender.php
+++ b/src/Illuminate/Notifications/NotificationSender.php
@@ -193,6 +193,12 @@ protected function queueNotification($notifiables, $notification)
                             ->onConnection($notification->connection)
                             ->onQueue($notification->queue)
                             ->delay($notification->delay)
+                            ->through(
+                                array_merge(
+                                    method_exists($notification, 'middleware') ? $notification->middleware() : [],
+                                    $notification->middleware ?? []
+                                )
+                            )
                 );
             }
         }