--- a/Allura/allura/templates/user_preferences.html
+++ b/Allura/allura/templates/user_preferences.html
@@ -25,7 +25,7 @@
             <input type="submit" value="(Re)generate API Token"
                     />
           </form>
-          <div style="clear:both"/>
+          <div style="clear:both"></div>
 
           <h2>Subscriptions</h2>
           {% if subscriptions %}