diff --git a/src/proto/chat/chat.proto b/src/proto/chat/chat.proto
index 6faa654c2..50f7ef652 100644
--- a/src/proto/chat/chat.proto
+++ b/src/proto/chat/chat.proto
@@ -135,6 +135,7 @@ message UserSendMsgResp {
   int32 ReqIdentifier = 3;
   string ServerMsgID = 4;
   string ClientMsgID = 5;
+  int64  sendTime = 6;
 
 }
 service Chat {