diff --git a/config/routes.rb b/config/routes.rb
index 02cdb3de..71b5b1e4 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -90,6 +90,7 @@ Rails.application.routes.draw do
       get 'convert_to_project' # TODO: convert to PUT/POST
       delete 'remove_predecessor' # TODO: convert to PUT/POST
       post 'change_context'
+      get 'attachment'
     end
     collection do
       get 'done'