diff --git a/config/application.rb b/config/application.rb
index 5324392df9..a289ae57e8 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -230,6 +230,8 @@ module Openfoodnetwork
 
     config.generators.template_engine = :haml
 
+    Rails.application.routes.default_url_options[:host] = ENV["SITE_URL"]
+
     config.autoloader = :zeitwerk
 
     config.action_view.form_with_generates_ids = true