diff --git a/internal/op/rooms.go b/internal/op/rooms.go
index 0792e53..9a55ce5 100644
--- a/internal/op/rooms.go
+++ b/internal/op/rooms.go
@@ -73,7 +73,7 @@ func CompareAndCloseRoom(room *Room) error {
 	r, loaded := roomCache.Load(room.ID)
 	if loaded {
 		if r.Value() != room {
-			return nil
+			return errors.New("room compare failed")
 		}
 		if roomCache.CompareAndDelete(room.ID, r) {
 			r.Value().close()