diff --git a/app/controllers/zipdown_controller.rb b/app/controllers/zipdown_controller.rb
index f8bf0d736..8b93d7443 100644
--- a/app/controllers/zipdown_controller.rb
+++ b/app/controllers/zipdown_controller.rb
@@ -110,7 +110,7 @@ class ZipdownController < ApplicationController
           #length = attach.storage_path.length
           homeworks_attach_path << attach.diskfile#.to_s.slice((length+1)..-1)
         end
-        zipping("#{user.user_extensions.student_id}_#{homeattach.user.name.to_s}.zip", homeworks_attach_path, OUTPUT_FOLDER, true)
+        zipping("#{homework.user.user_extensions.student_id}_#{homeattach.user.name.to_s}.zip", homeworks_attach_path, OUTPUT_FOLDER, true)
         #user_attaches_paths
     #end
   end