diff --git a/config/environments/production.rb b/config/environments/production.rb
index eb971cc4..9b8fccef 100644
--- a/config/environments/production.rb
+++ b/config/environments/production.rb
@@ -68,6 +68,7 @@ Rails.application.configure do
   config.active_support.deprecation = :notify
 
   config.action_mailer.delivery_method = :sendmail
+  config.action_mailer.default_url_options = { host: APP_CONFIG['hostname'] }
   config.action_mailer.perform_deliveries = true
   # Ignore bad email addresses and do not raise email delivery errors.
   # Set this to true and configure the email server for immediate delivery to raise delivery errors.