diff --git a/app/controllers/zipdown_controller.rb b/app/controllers/zipdown_controller.rb
index 1ce834f61..d9a9e1def 100644
--- a/app/controllers/zipdown_controller.rb
+++ b/app/controllers/zipdown_controller.rb
@@ -10,7 +10,7 @@ class ZipdownController < ApplicationController
   #勿删 before_filter :authorize, :only => [:assort,:download_user_homework]
   SAVE_FOLDER = "#{Rails.root}/files"
   OUTPUT_FOLDER = "#{Rails.root}/files/archiveZip"
-  MAX_PATH = 250
+  MAX_PATH = 50
 
   #统一下载功能 
   def download