diff --git a/app/controllers/homework_common_controller.rb b/app/controllers/homework_common_controller.rb
index 81e0a080a..99f1b519b 100644
--- a/app/controllers/homework_common_controller.rb
+++ b/app/controllers/homework_common_controller.rb
@@ -244,6 +244,7 @@ class HomeworkCommonController < ApplicationController
     else
       @statue = 3
     end
+    find_homework
     @user_activity_id = params[:user_activity_id].to_i
     @hw_status = params[:hw_status].to_i
     @is_teacher = User.current.admin? || User.current.allowed_to?(:as_teacher, @course)