How do I deal with this gap? (re-posting as forgot to attach pic!)

[Rob99uk]

So, I've tiled most of the wall in my downstairs WC and am left with a narrow floor to ceiling strip at each end of about 25mm (see pic)

The majority of this gap will have the flat section of the tile trim so what should I use to stick the tile strips with?

I'm assuming the standard tile adhesive won't stick to the metal trim so do I need something a bit more "sticky" like those stick like s**t type building adhesives?

Cheers
Rob