Studio theme and wiki sidebar

I have installed the wiki plugin but it shows the default sidebar (through the Studio theme). I would like the wiki to have its own sidebar. It's provided like that in the code (in the wiki templates incsub_wiki.php calls for a wiki sidebar) but I don't see a wiki sidebar on the page, nor in the widget area.
Does Studio override that call somewhere? If so, how can I force Studio to find that wiki sidebar?