diff --git a/doc/plugins/contrib/headinganchors.mdwn b/doc/plugins/contrib/headinganchors.mdwn
index 5ef054bce..becbf89a5 100644
--- a/doc/plugins/contrib/headinganchors.mdwn
+++ b/doc/plugins/contrib/headinganchors.mdwn
@@ -1,5 +1,4 @@
 [[!template id=plugin name=headinganchors author="[[PaulWise]]"]]
-[[ikiwiki/directive/cosa]]
 
 This is a simple plugin to add ids (which will serve as [[anchor]]s) to all headings, based on their text. It
 works as a postprocessing filter, allowing it to work on mdwn, wiki, html,