diff --git a/apps/susidns/src/jsp/config.jsp b/apps/susidns/src/jsp/config.jsp
index 10cc5958086f18ec309b9be9aa86a4e6b0235131..95e904c3a3f9b5530d3b30cc7c88490c7afcd6d1 100644
--- a/apps/susidns/src/jsp/config.jsp
+++ b/apps/susidns/src/jsp/config.jsp
@@ -130,6 +130,9 @@
 <li><b>log</b> -
 <%=intl._("File to log activity to (change to /dev/null if you like)")%>
 </li>
+<li><b>theme</b> -
+<%=intl._("Name of the theme to use (defaults to 'light')")%>
+</li>
 </ul>
 </div><hr>
 <div id="footer">