diff --git a/app/controllers/report_controller.rb b/app/controllers/report_controller.rb
--- a/app/controllers/report_controller.rb
+++ b/app/controllers/report_controller.rb
@@ -2,11 +2,11 @@
 
 class ReportController < ApplicationController
 
-  before_filter :authenticate
+  before_action :authenticate
 
-  before_filter :admin_authorization, only: [:login_stat,:submission_stat, :stuck, :cheat_report, :cheat_scruntinize, :show_max_score, :current_score]
+  before_action :admin_authorization, only: [:login_stat,:submission_stat, :stuck, :cheat_report, :cheat_scruntinize, :show_max_score, :current_score]
 
-  before_filter(only: [:problem_hof]) { |c|
+  before_action(only: [:problem_hof]) { |c|
     return false unless authenticate
 
     admin_authorization unless GraderConfiguration["right.user_view_submission"]