diff --git a/kkkmeet-server.el b/kkkmeet-server.el
index 0f06de1..c07a380 100644
--- a/kkkmeet-server.el
+++ b/kkkmeet-server.el
@@ -298,7 +298,6 @@ When KEEP-OPEN is nil, close PROCESS after writing."
                                (sharing . :false))))
           (when (= (hash-table-count room) 0)
             (remhash room-id kkkmeet-server--rooms)
-            (remhash room-id kkkmeet-server--watch-states)
             (remhash room-id kkkmeet-server--presentation-states)))))))
 
 (defun kkkmeet-server--parse-request (raw)
diff --git a/server.js b/server.js
index b1b14e1..44b6b51 100644
--- a/server.js
+++ b/server.js
@@ -185,7 +185,6 @@ function removePeer(roomId, peerId) {
 
   if (room.size === 0) {
     rooms.delete(roomId);
-    watchStates.delete(roomId);
     presentationStates.delete(roomId);
   }
 }