diff --git a/app/controllers/attendances_controller.rb b/app/controllers/attendances_controller.rb
index 936bef188..000c90428 100644
--- a/app/controllers/attendances_controller.rb
+++ b/app/controllers/attendances_controller.rb
@@ -106,7 +106,7 @@ class AttendancesController < ApplicationController
 
     attrs = %i[course_attendance_id user_id course_member_id course_id course_group_id created_at updated_at]
 
-    same_attrs = {course_attendance_id: attendance.id, course_id: course.id}
+    same_attrs = {course_attendance_id: @attendance.id, course_id: @course.id}
 
     CourseMemberAttendance.bulk_insert(*attrs) do |worker|