diff --git a/config/environments/review.rb b/config/environments/review.rb
index 1a6349fcc..ec4c67726 100644
--- a/config/environments/review.rb
+++ b/config/environments/review.rb
@@ -58,7 +58,7 @@ Rails.application.configure do
 
   config.action_mailer.perform_caching = false
 
-  config.action_mailer.default_url_options = { host: ENV["APP_HOST"], :script_name => Rails.application.config.relative_url_root }
+  config.action_mailer.default_url_options = { host: ENV["APP_HOST"], script_name: Rails.application.config.relative_url_root }
   config.action_mailer.delivery_method = :smtp
   config.action_mailer.smtp_settings = {
     address: "smtp.gmail.com",