diff --git a/doc/css_market.mdwn b/doc/css_market.mdwn
index 8773b10fd..8b7e17585 100644
--- a/doc/css_market.mdwn
+++ b/doc/css_market.mdwn
@@ -1,8 +1,11 @@
 [[!meta title="CSS Market"]]
 
-User contributed stylesheet files for ikiwiki. Feel free to add your own
-stylesheets here. (Upload as wiki pages; wiki gnomes will convert them to css
-files..)
+User contributed stylesheet files for ikiwiki. Unless otherwise noted,
+these style sheets can be installed by copying them into your wiki's source
+dir with a filename of `local.css`.
+
+Feel free to add your own stylesheets here. (Upload as wiki pages; wiki
+gnomes will convert them to css files..)
 
 * **[[css_market/zack.css]]**, contributed by [[StefanoZacchiroli]],
   customized mostly for *blogging purposes*, can be seen in action on