Sealing a hinged bath/shower screen

[dg_pug106gti]

I have just replaced my bath with a P-shaped bath to fit a shower as well. The screen that came with the bath is fitted and I just want to check the correct way of dealing as there is a small gap below the hinge. The grey circular area.
Instructing say to seal in out side but stop before this area. Doesn't make sense to me as I believe water will just leak from the gap. Pictures attached.
Any help on what's the correct way to seal this.
Thanks.

 

[Madrab]

The bottom of the screen hinge should sit flat onto the lip of the bath once it's slotted into the wall bracket.
There should be a little clear silicone be run down the outside wall edge of the bracket and along the bottom corner when fitted. Use a little of that to fill in the gap below the hinge.