diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index 15040387..2eebf640 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -133,6 +133,7 @@ public function token(string $publicId, ?string $displayName): DataResponse {
 		$context = [
 			'user' => [
 				'name' => $displayName,
+                                'lobby' => $user === null,			
 			],
 		];