diff --git a/app/controllers/user_admin_controller.rb b/app/controllers/user_admin_controller.rb
--- a/app/controllers/user_admin_controller.rb
+++ b/app/controllers/user_admin_controller.rb
@@ -4,7 +4,7 @@
 
   include MailHelperMethods
 
-  before_filter :admin_authorization
+  before_action :admin_authorization
 
   # GETs should be safe (see http://www.w3.org/2001/tag/doc/whenToUseGet.html)
   verify :method => :post, :only => [