diff --git a/src/actions/RoleAction.lua b/src/actions/RoleAction.lua
index db371e2..392f485 100644
--- a/src/actions/RoleAction.lua
+++ b/src/actions/RoleAction.lua
@@ -640,6 +640,7 @@ function _M.openTimeBoxRpc(agent, data)
 		end
 
 		if role:getItemCount(costId) < count then return 8 end
+		if not role:checkItemEnough(costs) then return 9 end
 
 		role:costItems({[costId] = count}, {log = {desc = "openTimeBox"}})
 
--
libgit2 0.21.2