diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index 11208171c..7d5e666af 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -60,7 +60,7 @@ class AttachmentsController < ApplicationController
       value = value.to_i + 1
       Rails.cache.write(cache_key, value, expires_in: 1.day)
       # send_data(response.body.force_encoding("UTF-8"),  filename: filename, type: "application/octet-stream", disposition: 'attachment')
-      send_data(file,  filename: filename, type: "application/octet-stream", disposition: 'attachment')
+      send_file(file,  filename: filename, type: "application/octet-stream", disposition: 'attachment')
     end
   end