How to fill a gap between upvc door and the window in it?

[Justmuddlingalong]

I've just been cleaning the inside of my upvc front door and noticed that the plastic and window in the door aren't meeting at the bottom. Does anyone know what's best to use to seal it. It's on the inside, a gap of about 5mm at the bit I've pointed out on this picture I've borrowed from the Web.

Not sure I've understood correctly but would a replacement rubber seal/gasket do the job?
Screwfix sell a white universal fit one.
Sorry, can't link.

It's sealed OK on the top and both sides, it's the bottom edge that has a gap. Hang on I'll take a photo of my actual door.

Stormguard UPVC door and window seal.

This is the gap, looking downwards. Sorry about the stoor, we're decorating.

Have you just lost a bit of UPVC beading from the bottom edge?

Thanks for your help. Could be. I've just checked the back door and that's got rubbery gluey stuff all the way around between the pane of glass and the upvc. But the front door hasn't. So do I just reseal it with the sealant then?

Is there something missing at the bottom compared to the sides? Stormguard strip?

There's no sealant or beading on the bottom at all. Doesn't look like it's perished, looks like there never was any.

Clear sealant from b&q or diy place will do the job.