--- a/Allura/allura/templates/widgets/threads_table.html
+++ b/Allura/allura/templates/widgets/threads_table.html
@@ -4,7 +4,7 @@
   <table id="forum-list" class="clear">
     <thead> 
       <tr> 
-        <th>&nbsp;</th> 
+        <th><span class="ico ico-mail" title="Subscriptions" data-icon="M"></span></th> 
         <th class="topic">Topic</th> 
         <th>Posts</th> 
         <th>Views</th>