diff --git a/app/controllers/exercises_controller.rb b/app/controllers/exercises_controller.rb
index e5d9fc495..cf67746ac 100644
--- a/app/controllers/exercises_controller.rb
+++ b/app/controllers/exercises_controller.rb
@@ -399,7 +399,7 @@ class ExercisesController < ApplicationController
       choice_random = params[:choice_random] ? true : false
       score_open = params[:score_open] ? true : false #分数是否公开
       answer_open = params[:answer_open] ? true : false #答案是否公开
-      assistant_auth = params[:assistant_auth] ? true : false # 助教权限
+      assistant_auth = params[:assistant_auth] # 助教权限
 
       # 统一设置或者分班为0，则更新试卷，并删除试卷分组
       if unified_setting || (course_group_ids.size == 0)
@@ -532,7 +532,8 @@ class ExercisesController < ApplicationController
             :answer_open => answer_open,
             :exercise_status => exercise_status,
             :publish_time => p_time,
-            :end_time => e_time
+            :end_time => e_time,
+            :assistant_auth => assistant_auth
           }
           @exercise.update!(exercise_params)
           if @exercise.exercise_status == Exercise::PUBLISHED