diff --git a/ikiwiki.setup b/ikiwiki.setup
index 3a62b51..366c9b7 100644
--- a/ikiwiki.setup
+++ b/ikiwiki.setup
@@ -92,7 +92,7 @@ hardlink: 0
 # group for wrappers to run in
 #wrappergroup: ikiwiki
 # extra library and plugin directories
-libdirs: [lib]
+libdirs: [plugins]
 # extra library and plugin directory (searched after libdirs)
 libdir: ''
 # environment variables
diff --git a/lib/IkiWiki/Plugin/sidebar2.pm b/plugins/IkiWiki/Plugin/sidebar2.pm
similarity index 100%
rename from lib/IkiWiki/Plugin/sidebar2.pm
rename to plugins/IkiWiki/Plugin/sidebar2.pm