diff --git a/config/environments/development.rb b/config/environments/development.rb
index a91cebc2..10cc7bc8 100644
--- a/config/environments/development.rb
+++ b/config/environments/development.rb
@@ -33,6 +33,8 @@ Rails.application.configure do
   # Raise errors for missing translations.
   config.action_view.raise_on_missing_translations = true
 
+  BetterErrors::Middleware.allow_ip! ENV['TRUSTED_IP'] if ENV['TRUSTED_IP']
+
   # Delete middleware in order to allow concurrent requests.
   config.middleware.delete(Rack::Lock)
 end