Pickup selector tip falls off..

On my new Cutlass the plastic tip on the pickup selector switch is very loose, to the point of falling off all the time.

How do you recommend I fix this? I thought about simply using a bit of glue, but I guess I might at some point in the future want it to come off again, if I have to remove the pick guard.

But yeah, any ideas? 😉

Cheers,
Kasper