diff --git a/src/actions/HangAction.lua b/src/actions/HangAction.lua
index 2d7e425..9833624 100644
--- a/src/actions/HangAction.lua
+++ b/src/actions/HangAction.lua
@@ -763,7 +763,7 @@ local function workWinReward(role, bonusData, rewardType, count, sweep)
 
 	reward = bonusData.reward:toNumMap()
 	for itemId, c in pairs(reward) do
-		reward[itemId] = c * count
+		reward[itemId] = (reward[itemId] or 0) + c * count
 	end
 	for i = 1, count do
 		local chance = bonusData.chance:randWeight(true)
--
libgit2 0.21.2