diff --git a/lua/app/userdata/activity/act_boss_rush/act_boss_rush_data.lua b/lua/app/userdata/activity/act_boss_rush/act_boss_rush_data.lua
index 64a17f11..e91f05ea 100644
--- a/lua/app/userdata/activity/act_boss_rush/act_boss_rush_data.lua
+++ b/lua/app/userdata/activity/act_boss_rush/act_boss_rush_data.lua
@@ -326,7 +326,7 @@ function ActBossRushData:getRankRewardList()
     if not self.rankRewardList then
         self.rankRewardList = {}
         local cfg = self:getRankConfig()
-        for id, info in ipairs(cfg) do
+        for id, info in pairs(cfg) do
             if info.activity == (self.activity_id or ACT_ID) then
                 table.insert(self.rankRewardList, id)
             end