diff --git a/source/util/src/terror.c b/source/util/src/terror.c
index 65ab22c2e1..a19a022b01 100644
--- a/source/util/src/terror.c
+++ b/source/util/src/terror.c
@@ -303,7 +303,7 @@ TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_TARGET_TABLE,     "Cannot write the same
 // mnode-sma
 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")
+TAOS_DEFINE_ERROR(TSDB_CODE_MND_INVALID_SMA_OPTION,       "Invalid sma index option")
 
 // dnode
 TAOS_DEFINE_ERROR(TSDB_CODE_DNODE_OFFLINE,                "Dnode is offline")