Menu on single posts

I have a menu on my homepage and I have custom links that point to sections, i.e. #contatti.
The link to the section is like this: http://stefaniaforlani.se/wp/#contatti

When I click on a single post, though, the menu in that page is wrong and I have all the project link before the name of the section, like this:
http://stefaniaforlani.se/wp/projects/patrik-lindenfors-dio-probabilmente-non-esiste/#contatti

Is there a way to change this in Sydney’s options? Thanks.

Hello there,

In your custom links type of menu, use your http://stefaniaforlani.se/wp/#contatti instead of #contatti alone.

Regards,
Kharis