- Fixed typo in the example of a self join on a model

railties/guides/source/association_basics.textile

@@ -342,7 +342,7 @@ In designing a data model, you will sometimes find a model that should have a re
 
 <ruby>
 class Employee < ActiveRecord::Base
-  has_many :subordinates, :class_name => "Employee"
+  has_many :subordinates, :class_name => "Employee",
   belongs_to :manager, :class_name => "Employee"
     :foreign_key => "manager_id"
 end