diff --git a/config/environments/development.rb b/config/environments/development.rb
index 8500f45..4d6f232 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -1,6 +1,7 @@
 require "active_support/core_ext/integer/time"
 
 Rails.application.configure do
+  config.hosts << ".githubpreview.dev"
   # Settings specified here will take precedence over those in config/application.rb.
 
   # In the development environment your application's code is reloaded any time