diff --git a/sim/gatedef.lua b/sim/gatedef.lua
index 6748d0b..b41b0db 100644
--- a/sim/gatedef.lua
+++ b/sim/gatedef.lua
@@ -103,7 +103,7 @@ function GateDefinition.constructgate(def, objref, position, rotation)
 		
 		gate.ports[port.idx] = port
 		gate.port_nets[port.idx] = nil
-		gate.ports_states[port.idx] = 0
+		gate.port_states[port.idx] = 0
 	end
 	
 	return gate