diff --git a/config/routes.rb b/config/routes.rb
index 47ab1a89b8d47318616d638cfef70f6f85a59c94..021eab89c2ae805b4de6d2534268cd894d9ad12c 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -59,6 +59,9 @@ Rails.application.routes.draw do
     mount Sidekiq::Web, at: '/admin/sidekiq', as: :sidekiq
   end
 
+  # Enable Grack support (for LFS only)
+  mount Grack::AuthSpawner, at: '/', constraints: lambda { |request| /[-\/\w\.]+\.git\/(info\/lfs|gitlab-lfs)/.match(request.path_info) }, via: [:get, :post, :put]
+
   # Help
   get 'help'                  => 'help#index'
   get 'help/:category/:file'  => 'help#show', as: :help_page, constraints: { category: /.*/, file: /[^\/\.]+/ }