u/Fun-Command-2751

I dropped my bike onto the right side fml. Everything is fine thankfully but the handlebar switch controls is a little loose now. I opened it to tighten the clamp on the inside but it’s already as tight as can be. I saw that there should be a pin in this hole but I don’t see one on mine. Maybe that’s the culprit? My question is am I missing something in that hole and what should it look like?