Localized build fails on line 45 of css/valo-cd.scss

I have tried to build an iso from the latest trunk, and failed:

gabor@gabor-laptop:~/src/launchpad/valocd-new/build-system/html-ui$ ./build-ui.sh http://www.valo-cd.net/wiki/Version_2013_HU valo-cd-hu/VALO-CD/content ../../programs ../../guides
<...things go well, snip...>
Loaded URL="http://www.valo-cd.net/wiki/Linux_HU" ID="(null)"
+ sass css/valo-cd.scss valo-cd.css
Syntax error: File to import not found or unreadable: logo.
              Load path: /home/gabor/src/launchpad/valocd-new/build-system/html-ui
        on line 45 of css/valo-cd.scss
  Use --trace for backtrace.

Looks like valo-cd.scss is not prepared yet for localized logos.