diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index f811d2f203..288ea6052b 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -187,7 +187,7 @@ static int32_t cfgSetInt32(SConfigItem *pItem, const char *value, ECfgSrcType st
 }
 
 static int32_t cfgSetInt64(SConfigItem *pItem, const char *value, ECfgSrcType stype) {
-  int64_t ival = (int64_t)atoi(value);
+  int64_t ival = (int64_t)atoll(value);
   if (ival < pItem->imin || ival > pItem->imax) {
     uError("cfg:%s, type:%s src:%s value:%" PRId64 " out of range[%" PRId64 ", %" PRId64 "]", pItem->name,
            cfgDtypeStr(pItem->dtype), cfgStypeStr(stype), ival, pItem->imin, pItem->imax);