diff --git a/game-server/app/services/role/rewardService.ts b/game-server/app/services/role/rewardService.ts
index 751bc0ce6..b786eaefa 100644
--- a/game-server/app/services/role/rewardService.ts
+++ b/game-server/app/services/role/rewardService.ts
@@ -422,7 +422,7 @@ export function getJewelRandSe(id: number, seid: number) {
     if (dicRandom.id > 0) {
         let randRange = getRandEelmWithWeight(dicRandom.rate);
         let randResult = getRandValueByMinMax(randRange.dic.min, randRange.dic.max, getDecimalCnt(dicRandom.gap));
-        let n = Math.floor((randResult - dicRandom.Min)/dicRandom.gap);
+        let n = Math.ceil((randResult - dicRandom.Min)/dicRandom.gap);
         rand = dicRandom.Min + n * dicRandom.gap;
     }
     return new RandSe(id, dicRandom.id, rand);