diff --git a/src/observer/mysql/obmp_packet_sender.cpp b/src/observer/mysql/obmp_packet_sender.cpp
index d33e7d35bf..0da013082a 100644
--- a/src/observer/mysql/obmp_packet_sender.cpp
+++ b/src/observer/mysql/obmp_packet_sender.cpp
@@ -632,13 +632,17 @@ int ObMPPacketSender::send_ok_packet(ObSQLSessionInfo &session, ObOKPParam &ok_p
           if (OB_SUCC(ret)) {
             if (conn_->is_normal_client()) {
               okp.set_use_standard_serialize(true);
-              if (OB_FAIL(ObMPUtils::add_nls_format(okp, session, true))) {
+              if (OB_FAIL(ObMPUtils::add_changed_session_info(okp, session))) {
+                SERVER_LOG(WARN, "fail to add changed session info", K(ret));
+              } else if (OB_FAIL(ObMPUtils::add_nls_format(okp, session, true))) {
                 LOG_WARN("fail to add_nls_format", K(ret));
               }
             } else if (conn_->is_driver_client()) {
               // will not track session variables, do nothing
               okp.set_use_standard_serialize(true);
-              if (OB_FAIL(ObMPUtils::add_nls_format(okp, session, true))) {
+              if (OB_FAIL(ObMPUtils::add_changed_session_info(okp, session))) {
+                SERVER_LOG(WARN, "fail to add changed session info", K(ret));
+              } else if (OB_FAIL(ObMPUtils::add_nls_format(okp, session, true))) {
                 LOG_WARN("fail to add_nls_format", K(ret));
               }
             } else {