X-Git-Url: https://git.openstreetmap.org/rails.git/blobdiff_plain/29aac6e14964d612ee6a06998ae61bc8923f5946..928465764e52407884b35e31a08bf9241e651269:/app/mailers/notifier.rb

diff --git a/app/mailers/notifier.rb b/app/mailers/notifier.rb
index 1d33db9d8..c60dff84b 100644
--- a/app/mailers/notifier.rb
+++ b/app/mailers/notifier.rb
@@ -218,7 +218,9 @@ class Notifier < ApplicationMailer
 
   def set_references(scope, reference_object)
     ref = "osm-#{scope}-#{reference_object.id}@#{Settings.server_url}"
+
+    headers["X-Entity-Ref-ID"] = ref
     headers["In-Reply-To"] = ref
-    headers["References"]  = ref
+    headers["References"] = ref
   end
 end