diff --git a/app/controllers/projects/repositories_controller.rb b/app/controllers/projects/repositories_controller.rb
index 28fed8b0e3f..c61d2fb8719 100644
--- a/app/controllers/projects/repositories_controller.rb
+++ b/app/controllers/projects/repositories_controller.rb
@@ -22,6 +22,7 @@ class Projects::RepositoriesController < Projects::ApplicationController
 
     if file_path
       # Send file to user
+      response.headers['Content-Length'] = File.Open(file_path).size.to_s
       send_file file_path
     else
       render_404