diff --git a/config/application.rb b/config/application.rb
index 37b1d22d..e6cbe268 100644
--- a/config/application.rb
+++ b/config/application.rb
@@ -20,5 +20,7 @@ module AgendaDuLibreRails
     # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
     # config.i18n.default_locale = :de
     config.i18n.default_locale = :fr
+
+    I18n.config.enforce_available_locales = true
   end
 end