diff --git a/app/controllers/graduation_tasks_controller.rb b/app/controllers/graduation_tasks_controller.rb
index 3a6762663..a1f1d01c4 100644
--- a/app/controllers/graduation_tasks_controller.rb
+++ b/app/controllers/graduation_tasks_controller.rb
@@ -98,7 +98,7 @@ class GraduationTasksController < ApplicationController
       unless params[:cross_comment].blank?
           graduation_work_id = @task.graduation_work_comment_assignations.where(:user_id =>current_user.id)
                                    .pluck(:graduation_work_id).uniq if @task.graduation_work_comment_assignations
-          @work_list = @work_list.where(id: graduation_work_id)
+          @work_list = @task.graduation_works.where(id: graduation_work_id)
       end
 
       # 输入姓名和学号搜索