diff --git a/app/views/gantts/show.html.erb b/app/views/gantts/show.html.erb
index 463e0f1b0..6f50d0575 100644
--- a/app/views/gantts/show.html.erb
+++ b/app/views/gantts/show.html.erb
@@ -12,7 +12,7 @@
     <%= render :partial => 'queries/filters', :locals => {:query => @query} %>
   </div>
 </fieldset>
-<fieldset id="filters" class="collapsible">
+<fieldset class="collapsible">
   <legend onclick="toggleFieldset(this);"><%= l(:label_display) %></legend>
   <div>
     <table>