Manker U21 switch cover repair

My U21’s rubber switch boot came loose while I was out last night and I had to remove it later to avoid losing it. I would like to repair it but I’m not sure about the correct procedure. Do I have to pry off the metal ring, re-seat the rubber, and then press it back in?

the switch cover is screwed in

just unscrew it and put it back together

Thanks! Now I feel like an idiot :smiley: