diff --git a/source/client/src/clientSml.c b/source/client/src/clientSml.c
index ce06e0eac4..30c0008f3d 100644
--- a/source/client/src/clientSml.c
+++ b/source/client/src/clientSml.c
@@ -1351,7 +1351,7 @@ static int32_t smlInsertData(SSmlHandle *info) {
     }
     taosArrayPush(info->pRequest->tableList, &pName);
 
-    tstrncpy(pName.tname, tableData->childTableName, strlen(tableData->childTableName) + 1);
+    strcpy(pName.tname, tableData->childTableName);
 
     SRequestConnInfo conn = {0};
     conn.pTrans = info->taos->pAppInfo->pTransporter;