diff --git a/mkdocs.yml b/mkdocs.yml
index ee5aa4c..ed7b7a6 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -3,4 +3,4 @@ site_url: https://pages.gitlab.io/mkdocs
 site_dir: public
 theme: 
  name: ivory
- extra_css: style.css
+extra_css: [style.css]