diff --git a/src/tsdb/src/tsdbMain.c b/src/tsdb/src/tsdbMain.c
index 38b5f252b4b308c62a4c3a23d415b4382627501f..4b9e977a1b741c6998b3c6bca8b7e7ec2cae6a27 100644
--- a/src/tsdb/src/tsdbMain.c
+++ b/src/tsdb/src/tsdbMain.c
@@ -417,7 +417,7 @@ static int32_t tsdbCheckAndSetDefaultCfg(STsdbCfg *pCfg) {
   if (pCfg->maxTables == -1) {
     pCfg->maxTables = TSDB_DEFAULT_TABLES+1;
   } else {
-    if (pCfg->maxTables - 1 < TSDB_MIN_TABLES || pCfg->maxTables - 1 > TSDB_MAX_TABLES + 1) {
+    if (pCfg->maxTables - 1 < TSDB_MIN_TABLES || pCfg->maxTables - 1 > TSDB_MAX_TABLES) {
       tsdbError("vgId:%d invalid maxTables configuration! maxTables %d TSDB_MIN_TABLES %d TSDB_MAX_TABLES %d",
                 pCfg->tsdbId, pCfg->maxTables - 1, TSDB_MIN_TABLES, TSDB_MAX_TABLES);
       goto _err;