diff --git a/conf.py b/conf.py
index 1bd94489..198a8cac 100644
--- a/conf.py
+++ b/conf.py
@@ -167,6 +167,5 @@
 def setup(app):
     app.add_stylesheet('css/custom.css')
 
-
-html_css_files = ['custom.css']
+# http://www.sphinx-doc.org/en/master/usage/configuration.html#confval-html_title
 html_title = "CS50 Docs"