diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 38472c0d3..9a651cf6e 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -12,9 +12,9 @@ class CoursesController < ApplicationController
   end
 
   before_action :require_login, except: [:index, :show, :students, :teachers, :board_list, :mine, :all_course_groups,
-                                                      :left_banner, :top_banner, :apply_to_join_course]
-  before_action :check_auth, except: [:index, :show, :students, :teachers, :board_list, :mine, :all_course_groups,
                                                       :left_banner, :top_banner]
+  before_action :check_auth, except: [:index, :show, :students, :teachers, :board_list, :mine, :all_course_groups,
+                                                      :left_banner, :top_banner, :apply_to_join_course]
   before_action :set_course, :user_course_identity, only: [:show, :update, :destroy, :settings, :set_invite_code_halt,
                                                            :set_public_or_private, :search_teacher_candidate, :teachers, :apply_teachers,
                                                            :top_banner, :left_banner, :add_teacher_popup, :add_teacher,