diff --git a/pelican/themes/simple/templates/base.html b/pelican/themes/simple/templates/base.html
index 26103864..eaf4484f 100644
--- a/pelican/themes/simple/templates/base.html
+++ b/pelican/themes/simple/templates/base.html
@@ -11,7 +11,7 @@
         </header><!-- /#banner -->
         {% if categories %}<ul>
         {% for category, articles in categories %}
-            <li><a href="category/{{category}}.html">{{ category }}</a></li> 
+            <li><a href="{{ SITEURL }}/category/{{category}}.html">{{ category }}</a></li> 
         {% endfor %}
         </ul> {% endif %}
         {% block content %}