diff --git a/app/models/content.rb b/app/models/content.rb
index <HASH>..<HASH> 100644
--- a/app/models/content.rb
+++ b/app/models/content.rb
@@ -360,6 +360,7 @@ class Object
 end
 
 class ContentTextHelpers
+  include ActionView::Helpers::UrlHelper
   include ActionView::Helpers::TagHelper
   include ActionView::Helpers::SanitizeHelper
   include ActionView::Helpers::TextHelper
after upgrading a Typo <I> blog to <I>.x the blog was "getting ActionView::TemplateError: undefined method `mail_to' for ContentTextHelpers" errors for any rss request, mail_to is in ActionView::Helpers::UrlHelper