diff --git a/application/common/library/LotteryGiftLua.php b/application/common/library/LotteryGiftLua.php
index 53254d9e..26249d06 100644
--- a/application/common/library/LotteryGiftLua.php
+++ b/application/common/library/LotteryGiftLua.php
@@ -171,7 +171,8 @@ redis.call('set', small_round_key, small_round)
 local small_total_times = tonumber(redis.call('incr', small_total_times_key))
 local small_total_gold = tonumber(redis.call('get', small_total_gold_key) or 0)
 small_total_gold = small_total_gold + small_pool_add
-redis.call('set', small_total_gold_key, small_total_gold)
+small_total_golds = string.format("%.2f", small_total_gold)
+redis.call('set', small_total_gold_key, small_total_golds)
 
 -- 4. 返回结果初始化（区分大小轮次）
 local result = {