diff --git a/app/views/homework_commons/works_list.json.jbuilder b/app/views/homework_commons/works_list.json.jbuilder
index 58fbfa596..93c105d15 100644
--- a/app/views/homework_commons/works_list.json.jbuilder
+++ b/app/views/homework_commons/works_list.json.jbuilder
@@ -91,7 +91,7 @@ if @homework.homework_type == "practice"
 
   json.student_works @student_works.each do |work|
     json.(work, :id, :update_time, :ultimate_score, :myshixun_id)
-    myshixun = work.myshixun || @shixun.find_by(user_id: @work.user_id)
+    myshixun = work.myshixun || @shixun.find_by(user_id: work.user_id)
 
     json.late_penalty work.late_penalty if @homework.allow_late
     json.work_score work_score_format(work.work_score, @current_user == work.user, @score_open)