diff --git a/app/controllers/users_controller.rb b/app/controllers/users_controller.rb
index 837c59890..bb5f3acb3 100644
--- a/app/controllers/users_controller.rb
+++ b/app/controllers/users_controller.rb
@@ -424,7 +424,7 @@ class UsersController < ApplicationController
   end
 
   def choose_user_course
-    homework = HomeworkCommon.find params[:homework].to_i
+    homework = HomeworkCommon.find params[:send_id].to_i
     if !params[:search].nil?
       search = "%#{params[:search].to_s.strip.downcase}%"
       @course = @user.courses.where("is_delete = 0 and #{Course.table_name}.id != #{homework.course_id} and #{Course.table_name}.id = #{params[:search].to_i } or #{Course.table_name}.name like :p",:p=>search).select { |course|  @user.allowed_to?(:as_teacher,course)}