diff --git a/app/views/layouts/base.html.erb b/app/views/layouts/base.html.erb
index 9cce11292..1a7c3c816 100644
--- a/app/views/layouts/base.html.erb
+++ b/app/views/layouts/base.html.erb
@@ -5,6 +5,7 @@
 <title><%=h html_title %></title>
 <meta name="description" content="<%= Redmine::Info.app_name %>" />
 <meta name="keywords" content="issue,bug,tracker" />
+<meta http-equiv="X-UA-Compatible" content="IE=9; IE=8; IE=7; IE=EDGE" />
 <%= csrf_meta_tag %>
 <%= favicon %>
 <%= stylesheet_link_tag 'application', :media => 'all' %>