diff --git a/app/controllers/lettings_logs_filters_controller.rb b/app/controllers/lettings_logs_filters_controller.rb
index b3edcdb79..e223ad93d 100644
--- a/app/controllers/lettings_logs_filters_controller.rb
+++ b/app/controllers/lettings_logs_filters_controller.rb
@@ -1,6 +1,7 @@
 class LettingsLogsFiltersController < ApplicationController
   before_action :lettings_session_filters, if: :current_user
   before_action -> { lettings_filter_manager.serialize_filters_to_session }, if: :current_user
+  before_action :authenticate_user!
 
   %w[years status needstype assigned_to owned_by managed_by].each do |filter|
     define_method(filter) do
diff --git a/app/controllers/sales_logs_filters_controller.rb b/app/controllers/sales_logs_filters_controller.rb
index c3eeb92ac..bebd362e0 100644
--- a/app/controllers/sales_logs_filters_controller.rb
+++ b/app/controllers/sales_logs_filters_controller.rb
@@ -1,6 +1,7 @@
 class SalesLogsFiltersController < ApplicationController
   before_action :sales_session_filters, if: :current_user
   before_action -> { sales_filter_manager.serialize_filters_to_session }, if: :current_user
+  before_action :authenticate_user!
 
   %w[years status assigned_to owned_by managed_by].each do |filter|
     define_method(filter) do