Glovebox trim screw for 2011 c220 CDI?

[Citizen-Al]

Hi, does anyone know what size the screw to hold the glovebox trim "up" in the passenger footwell in a 2011 c220 is? It's the screw nearest to the centre of the vehicle. I got my car this week and have noticed the screw is missing whilst working out how to route the aux cable so the trim hangs down slightly.

Thanks, Al