diff --git a/mkdocs.yml b/mkdocs.yml
index 050a14c..eb4ccc0 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -21,7 +21,6 @@ theme:
 
 extra_css:
   - stylesheets/extra.css
-a
 extra_javascript:
   - javascripts/tablesort.min.js
   - javascripts/tables.js