diff --git a/include/util/taoserror.h b/include/util/taoserror.h
index 4f4d000134..bba03718ba 100644
--- a/include/util/taoserror.h
+++ b/include/util/taoserror.h
@@ -192,6 +192,7 @@ int32_t* taosGetErrno();
 #define TSDB_CODE_MND_NO_USER_FROM_CONN         TAOS_DEF_ERROR_CODE(0, 0x0354)
 #define TSDB_CODE_MND_TOO_MANY_USERS            TAOS_DEF_ERROR_CODE(0, 0x0355)
 #define TSDB_CODE_MND_INVALID_ALTER_OPER        TAOS_DEF_ERROR_CODE(0, 0x0356)
+#define TSDB_CODE_MND_AUTH_FAILURE              TAOS_DEF_ERROR_CODE(0, 0x0357)
 
 // mnode-stable-part1
 #define TSDB_CODE_MND_STB_ALREADY_EXIST         TAOS_DEF_ERROR_CODE(0, 0x0360)
diff --git a/source/dnode/mnode/impl/src/mndProfile.c b/source/dnode/mnode/impl/src/mndProfile.c
index f6ecd4493d..4b57f45631 100644
--- a/source/dnode/mnode/impl/src/mndProfile.c
+++ b/source/dnode/mnode/impl/src/mndProfile.c
@@ -240,7 +240,7 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
 
   if (strncmp(connReq.passwd, pUser->pass, TSDB_PASSWORD_LEN - 1) != 0) {
     mGError("user:%s, failed to login from %s since invalid pass, input:%s", pReq->info.conn.user, ip, connReq.passwd);
-    code = TSDB_CODE_RPC_AUTH_FAILURE;
+    code = TSDB_CODE_MND_AUTH_FAILURE;
     goto _OVER;
   }
 
diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index ad6eff3c12..3b95adc970 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -195,8 +195,9 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_PASS_FORMAT,      "Invalid password form
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_NO_USER_FROM_CONN,        "Can not get user from conn")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOO_MANY_USERS,           "Too many users")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_ALTER_OPER,       "Invalid alter operation")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_AUTH_FAILURE,             "Authentication failure")
 
-// mnode-stable-part1
+//mnode-stable-part1
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_STB_ALREADY_EXIST,        "STable already exists")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_STB_NOT_EXIST,            "STable not exist")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOO_MANY_TAGS,            "Too many tags")