diff --git a/config/application.rb b/config/application.rb
index 63e0a6d2..da67c912 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -34,7 +34,7 @@ module Greenlight
     config.exceptions_app = routes
 
     # Configure I18n localization.
-    config.i18n.available_locales = [:en, :"pt-br"]
+    config.i18n.available_locales = %w(en pt-br)
     config.i18n.default_locale = "en"
 
     # Check if a loadbalancer is configured.