diff --git a/src/room/useLoadGroupCall.ts b/src/room/useLoadGroupCall.ts
index 2cd0d40b0..8a7617d85 100644
--- a/src/room/useLoadGroupCall.ts
+++ b/src/room/useLoadGroupCall.ts
@@ -280,7 +280,7 @@ export const useLoadGroupCall = (
             );
           }
           if (
-            roomSummary === undefined ||
+            roomSummary?.join_rule === undefined ||
             roomSummary.join_rule === JoinRule.Public
           ) {
             room = await client.joinRoom(roomId, {