diff --git a/lua/app/userdata/idle/idle_data.lua b/lua/app/userdata/idle/idle_data.lua
index fd4afab2..1aac8073 100644
--- a/lua/app/userdata/idle/idle_data.lua
+++ b/lua/app/userdata/idle/idle_data.lua
@@ -56,7 +56,7 @@ function IdleData:getLastDropTime()
 end
 
 function IdleData:onGetIdleRewrad(time)
-	self.data.dropTime = time // 1000
+	self.data.dropTime = time or 0
 	for k, v in pairs(self.idleRewardMap) do
 		self.idleRewardMap[k].num = 0
 	end