diff --git a/sim/gate.lua b/sim/gate.lua
index 7fac0cc..798e02f 100644
--- a/sim/gate.lua
+++ b/sim/gate.lua
@@ -27,7 +27,7 @@ end
 function Gate.setportstate(gate, index, state)
 	if state ~= gate.port_states[index] then
 		local group = gate.port_nets[index]
-		local net_state_num = gate.port_net_state_nums[index]
+--		local net_state_num = gate.port_net_state_nums[index]
 		group.state_num = group.state_num - gate.port_states[index] + state
 		gate.port_states[index] = state