diff --git a/theme/templates/base.html b/theme/templates/base.html
index f5c3109..1803b6e 100644
--- a/theme/templates/base.html
+++ b/theme/templates/base.html
@@ -8,7 +8,7 @@
     {% block extra_meta %}
     {% endblock %}
 
-    <link rel="stylesheet" href="theme/css/{{ CSS_FILE }}" type="text/css" />
+    <link rel="stylesheet" href="{{ SITEURL }}/theme/css/{{ CSS_FILE }}" type="text/css" />
 
     {% if PELICAN_SOBER_STICKY_SIDEBAR %}
       <script type="text/javascript" src="{{ SITEURL }}/theme/js/custom_scripts.js"></script>