diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 5958e36..f52c44a 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -30,7 +30,7 @@ class UsersController < ApplicationController
 
   def index
     sort_init 'login', 'asc'
-    sort_update %w(login firstname lastname mail admin created_on last_login_on)
+    sort_update %w(login firstname lastname admin created_on last_login_on)
 
     case params[:format]
     when 'xml', 'json'
diff --git a/app/views/users/index.html.erb b/app/views/users/index.html.erb
index fe3d6de..25a429a 100644
--- a/app/views/users/index.html.erb
+++ b/app/views/users/index.html.erb
@@ -28,7 +28,7 @@
   <%= sort_header_tag('login', :caption => l(:field_login)) %>
   <%= sort_header_tag('firstname', :caption => l(:field_firstname)) %>
   <%= sort_header_tag('lastname', :caption => l(:field_lastname)) %>
-  <%= sort_header_tag('mail', :caption => l(:field_mail)) %>
+  <th><%= l(:field_mail) %></th>
   <%= sort_header_tag('admin', :caption => l(:field_admin), :default_order => 'desc') %>
   <%= sort_header_tag('created_on', :caption => l(:field_created_on), :default_order => 'desc') %>
   <%= sort_header_tag('last_login_on', :caption => l(:field_last_login_on), :default_order => 'desc') %>