diff --git a/actionmailer/README.rdoc b/actionmailer/README.rdoc
index 4c2516db596b4be66b54c1a5e70f7536d80f417b..755717cfba945eb51094866a50717950d601c568 100644
--- a/actionmailer/README.rdoc
+++ b/actionmailer/README.rdoc
@@ -82,7 +82,7 @@ Note that every value you set with this method will get over written if you use
 
 Example:
 
-  class Authenticationmailer < ActionMailer::Base
+  class AuthenticationMailer < ActionMailer::Base
     default :from => "awesome@application.com", :subject => Proc.new { "E-mail was generated at #{Time.now}" }
     .....
   end