diff --git a/src/common/src/tglobal.c b/src/common/src/tglobal.c
index d9b254a26ab46932a6c413f3b0324a2b8c867ac4..6260b22c81112647e605247621fdecb0524c43ff 100644
--- a/src/common/src/tglobal.c
+++ b/src/common/src/tglobal.c
@@ -1786,6 +1786,7 @@ static void doInitGlobalConfig(void) {
   cfg.maxValue = 10000000;
   cfg.ptrLength = 0;
   cfg.unitType = TAOS_CFG_UTYPE_NONE;
+  taosInitConfigOption(cfg);
 
   cfg.option = "sortWhenGroupBy";
   cfg.ptr = &tsSortWhenGroupBy;