diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 33b562c8dd..65ab22c2e1 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -211,8 +211,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_FUNC_BUFSIZE,     "Invalid func bufSize"
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_FUNC_COMMENT,     "Invalid func comment")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_FUNC_RETRIEVE,    "Invalid func retrieve msg")
 
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_TAG_INDEX_ALREADY_EXIST,  "Tag index already exists")
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_TAG_INDEX_NOT_EXIST,  "Tag index not exists")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_TAG_INDEX_ALREADY_EXIST,  "index already exists")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_TAG_INDEX_NOT_EXIST,  "index not exist")
 
 
 // mnode-db
@@ -301,8 +301,8 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_TOO_MANY_STREAMS,         "Too many streams")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_TARGET_TABLE,     "Cannot write the same stable as other stream")
 
 // mnode-sma
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_SMA_ALREADY_EXIST,        "SMA already exists")
-TAOS_DEFINE_ERROR(TSDB_CODE_MND_SMA_NOT_EXIST,            "SMA does not exist")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_SMA_ALREADY_EXIST,        "index already exists")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_SMA_NOT_EXIST,            "index not exist")
 TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_SMA_OPTION,       "Invalid sma option")
 
 // dnode