diff --git a/src/query/src/qExecutor.c b/src/query/src/qExecutor.c
index 425270b36a7734bc0817b1b9e5fd8cbf6fc10725..340a4c096025799a05812691665a2084d992b53e 100644
--- a/src/query/src/qExecutor.c
+++ b/src/query/src/qExecutor.c
@@ -6997,7 +6997,7 @@ SOperatorInfo* createSLimitOperatorInfo(SQueryRuntimeEnv* pRuntimeEnv, SOperator
   pInfo->slimit          = pQueryAttr->slimit;
   pInfo->limit           = pQueryAttr->limit;
   pInfo->capacity        = pRuntimeEnv->resultInfo.capacity;
-  pInfo->threshold       = pInfo->capacity * 0.8;
+  pInfo->threshold       = (int64_t) (pInfo->capacity * 0.8);
   pInfo->currentOffset   = pQueryAttr->limit.offset;
   pInfo->currentGroupOffset = pQueryAttr->slimit.offset;
   pInfo->multigroupResult= multigroupResult;