diff --git a/config/initializers/session_store.rb b/config/initializers/session_store.rb
--- a/config/initializers/session_store.rb
+++ b/config/initializers/session_store.rb
@@ -1,8 +1,3 @@
 # Be sure to restart your server when you modify this file.
-#CafeGrader::Application.config.session_store :cookie_store, key: '_cafe_grader_web_session'
 
-# Use the database for sessions instead of the cookie-based default,
-# which shouldn't be used to store highly confidential information
-# (create the session table with "rails generate session_migration")
-
-CafeGrader::Application.config.session_store :active_record_store
+Rails.application.config.session_store :cookie_store, key: '_cafe_grader_session'