diff --git a/app/controllers/student_work_controller.rb b/app/controllers/student_work_controller.rb
index 5b6de453e..1d40415c8 100644
--- a/app/controllers/student_work_controller.rb
+++ b/app/controllers/student_work_controller.rb
@@ -2,6 +2,7 @@ class StudentWorkController < ApplicationController
   layout "base_courses"
   include StudentWorkHelper
   require 'bigdecimal'
+  require "base64"
   before_filter :find_homework, :only => [:new, :index, :create, :student_work_absence_penalty, :absence_penalty_list, :evaluation_list]
   before_filter :find_work, :only => [:edit, :update, :show, :destroy, :add_score, :praise_student_work]
   before_filter :member_of_course, :only => [:index, :new, :create, :show, :add_score, :praise_student_work]
@@ -124,7 +125,7 @@ class StudentWorkController < ApplicationController
           url = "http://192.168.80.21:8080/api/questions/#{@homework.homework_detail_programing.question_id}/solutions.json"
           solutions = {
               stundet_work_id:stundet_work.id,
-              src:stundet_work.description,
+              src:Base64.encode64(stundet_work.description),
               language:1
           }
           uri = URI(url)