diff --git a/app/views/layouts/header/_default.html.haml b/app/views/layouts/header/_default.html.haml
index 7faa8bded86cc1fbd812cf5d6bf53e16dd661c36..da01fd1faa6306477b5725331eaaea40ff40d9b2 100644
--- a/app/views/layouts/header/_default.html.haml
+++ b/app/views/layouts/header/_default.html.haml
@@ -54,7 +54,7 @@
           - else
             %li
               %div
-                = link_to "Sign in", new_session_path(:user, redirect_to_referer: 'yes'), class: 'btn btn-sign-in btn-success'
+                = link_to "Sign in", user_omniauth_authorize_path(:cas3), method: :post, class: 'btn btn-sign-in btn-success', "data-no-turbolink" => "true"
 
 
       %h1.title= title