Idiot Brake Light Question

Ok, so here is the deal. I swapped from Power Brakes to Manual Brakes. I installed all new brake lines, proportioning valve, and MC. I hooked up the single wire that goes on the proportioning valve that I assume it activates the idiot light if you loose brake pressure.

Well I have bled the brakes many times and still can not get that light to turn off. Any way to get that light to turn off or will it only function properly with the Power Brake system?