Disable sidebar completely (requires #8942)
diff --git a/data/doc/buchpreis.html.ep b/data/doc/buchpreis.html.ep
index 4070fa9..b106c4b 100644
--- a/data/doc/buchpreis.html.ep
+++ b/data/doc/buchpreis.html.ep
@@ -1,5 +1,4 @@
-% layout 'main', title => $c->loc("en_korap_label") . ': Buchpreis', sidebar_active => 0, main_class => '';
-
+% layout 'main', title => $c->loc("en_korap_label") . ': Buchpreis', sidebar_active => 0, sidebar_off => 1, main_class => '';
%# %= page_title
<h2>Analysieren Sie die Romane des Deutschen Buchpreises!</h2>