Wrong title for pages in side menu

[thecross-fr]

Hello,

1. Create a standard page with a title composed of two words.
   Example: Title: About me
2. Run pelican using the brutalist template

Expected: link to page is shown in the side menu with label "About me".
Found: link to page is shown in the side menu with label "about-me".

How to fix it ?
File base.html, line 89.
<li{% if p == page %} class="active"{% endif %}><a href="{{ SITEURL }}/{{ p.url }}">{{ p.slug }}</a></li>

To be replaced by:
<li{% if p == page %} class="active"{% endif %}><a href="{{ SITEURL }}/{{ p.url }}">{{ p.title }}</a></li>