diff --git a/doc/conf.py b/doc/conf.py
index 1eac5b4..9af8e95 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -156,7 +156,7 @@ html_theme_options = {
 
     "footerbgcolor": "#FEFEFE",
 
-    "fontcssurl": "{% _static 'site.css' %}",
+    "fontcssurl": "_static/site.css"
 }
 # Add any paths that contain custom themes here, relative to this directory.
 #html_theme_path = []