diff --git a/server/sio/MMVC_Namespace.py b/server/sio/MMVC_Namespace.py
index 4a4f2671..64fe1367 100644
--- a/server/sio/MMVC_Namespace.py
+++ b/server/sio/MMVC_Namespace.py
@@ -22,17 +22,16 @@ class MMVC_Namespace(socketio.AsyncNamespace):
     async def on_request_message(self, sid, msg):
         timestamp = int(msg[0])
         data = msg[1]
-
         if(isinstance(data, str)):
             print(type(data))
             print(data)
-            await self.emit('response', [timestamp, 0])
+            await self.emit('response', [timestamp, 0], to=sid)
         else:
             unpackedData = np.array(struct.unpack('<%sh' % (len(data) // struct.calcsize('<h')), data))
             audio1 = self.voiceChangerManager.changeVoice(unpackedData)
             # print("sio result:", len(audio1), audio1.shape)
             bin = struct.pack('<%sh' % len(audio1), *audio1)
-            await self.emit('response', [timestamp, bin])
+            await self.emit('response', [timestamp, bin], to=sid)
 
     def on_disconnect(self, sid):
         # print('[{}] disconnect'.format(datetime.now().strftime('%Y-%m-%d %H:%M:%S')))