diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb
index 002576da05..3b91ed37d7 100644
--- a/actionmailer/lib/action_mailer/base.rb
+++ b/actionmailer/lib/action_mailer/base.rb
@@ -123,8 +123,9 @@ module ActionMailer #:nodoc:
#
# <%= users_url(:host => "example.com") %>
#
- # You want to avoid using the name_of_route_path form of named routes because it doesn't
- # make sense to generate relative URLs in email messages.
+ # You should use the named_route_url style (which generates absolute URLs) and avoid using the
+ # named_route_path style (which generates relative URLs), since clients reading the mail will
+ # have no concept of a current URL from which to determine a relative path.
#
# It is also possible to set a default host that will be used in all mailers by setting the :host
# option as a configuration option in config/application.rb: