diff --git a/app/controllers/ical_tickets_controller.rb b/app/controllers/ical_tickets_controller.rb
index 47993c1d5..49069fce5 100644
--- a/app/controllers/ical_tickets_controller.rb
+++ b/app/controllers/ical_tickets_controller.rb
@@ -3,9 +3,9 @@
 require 'icalendar'
 
 class IcalTicketsController < ApplicationController
-  before_action  { authentication_check_action_token 'iCal' }
+  before_action { authentication_check( { basic_auth_promt: true } ) }
 
-  # @path       [GET] /ical/tickets_all/:action_token
+  # @path       [GET] /ical/tickets/:action_token
   #
   # @summary          Returns an iCal file with all tickets (open, new, pending, esclation) as events.
   #
diff --git a/config/routes/ical_tickets.rb b/config/routes/ical_tickets.rb
index 324c30007..38c24f043 100644
--- a/config/routes/ical_tickets.rb
+++ b/config/routes/ical_tickets.rb
@@ -2,8 +2,8 @@ Zammad::Application.routes.draw do
   api_path = Rails.configuration.api_path
 
   # ical ticket
-  match api_path + '/ical/tickets/:action_token',              to: 'ical_tickets#all',           via: :get
-  match api_path + '/ical/tickets_new_open/:action_token',     to: 'ical_tickets#new_open',      via: :get
-  match api_path + '/ical/tickets_pending/:action_token',      to: 'ical_tickets#pending',       via: :get
-  match api_path + '/ical/tickets_escalation/:action_token',   to: 'ical_tickets#escalation',    via: :get
+  match api_path + '/ical/tickets',              to: 'ical_tickets#all',           via: :get
+  match api_path + '/ical/tickets_new_open',     to: 'ical_tickets#new_open',      via: :get
+  match api_path + '/ical/tickets_pending',      to: 'ical_tickets#pending',       via: :get
+  match api_path + '/ical/tickets_escalation',   to: 'ical_tickets#escalation',    via: :get
 end