diff --git a/src/vizier/index.erb b/src/vizier/index.erb
index e2126c46..7580aa07 100644
--- a/src/vizier/index.erb
+++ b/src/vizier/index.erb
@@ -45,7 +45,9 @@ template: templates/empty.erb
       where { |pub| pub.fetch("projects", []).include? "vizier" }.
       each do |pub| 
     %>
-      <div class="pub"><strong><%=pub["title"]%></strong>&nbsp;&nbsp;&nbsp;<i><%=pub["venue"]%></i>&nbsp;&nbsp;&nbsp;( <span class="resources"><%= pub["urls"].map { |r, url| "<a href=\"#{url}\">#{r}</a>"}.join(" | ") %></span> )</div>
+      <div class="pub"><strong><%=pub["title"]%></strong>&nbsp;&nbsp;&nbsp;<i><%=pub["venue"]%></i><% if pub.has_key? "urls" %>
+        &nbsp;&nbsp;&nbsp;( <span class="resources"><%= pub["urls"].map { |r, url| "<a href=\"#{url}\">#{r}</a>"}.join(" | ") %></span> )
+      <% end %></div>
     <% end %>
 </ul>