diff --git a/app/controllers/homework_common_controller.rb b/app/controllers/homework_common_controller.rb
index 28e2e192b..34bce7236 100644
--- a/app/controllers/homework_common_controller.rb
+++ b/app/controllers/homework_common_controller.rb
@@ -78,9 +78,9 @@ class HomeworkCommonController < ApplicationController
       @homework.course_id = params[:course_id]
       if params[:homework_common][:anonymous_comment] && params[:homework_common][:anonymous_comment] != @homework.anonymous_comment
         if  @homework.anonymous_comment == 1
-          homework_detail_manual.ta_proportion = homework.homework_type == 1 ? 1.0 : 0.4
+          homework_detail_manual.ta_proportion = @homework.homework_type == 1 ? 1.0 : 0.4
         else
-          homework_detail_manual.ta_proportion = homework.homework_type == 1 ? 0.6 : 0.3
+          homework_detail_manual.ta_proportion = @homework.homework_type == 1 ? 0.6 : 0.3
         end
       end