diff --git a/src/client/src/tscParseLineProtocol.c b/src/client/src/tscParseLineProtocol.c
index bde68c306ae7808352de895898c8381803e2bc7b..9fb6cb4717ce385609382ad1483ac18a6357cdcf 100644
--- a/src/client/src/tscParseLineProtocol.c
+++ b/src/client/src/tscParseLineProtocol.c
@@ -1127,7 +1127,7 @@ static int32_t applyDataPoints(TAOS* taos, TAOS_SML_DATA_POINT* points, int32_t
     tscDebug("SML:0x%"PRIx64" apply child table points. child table: %s", info->id, point->childTableName);
     code = applyChildTableFields(taos, sTableSchema, point->childTableName, cTablePoints, info);
     if (code != 0) {
-      tscError("Apply child table fields failed. child table %s, error %s", point->childTableName, tstrerror(code));
+      tscError("SML:0x%"PRIx64" Apply child table fields failed. child table %s, error %s", info->id, point->childTableName, tstrerror(code));
       goto cleanup;
     }