diff --git a/doc/conf.py b/doc/conf.py
index dd82eb7..39e52ea 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -30,3 +30,6 @@
 html_theme = 'sphinx_rtd_theme'
 
 html_static_path = ['_static']
+
+def setup(app):
+	app.add_stylesheet('custom.css')