diff --git a/README.md b/README.md
index 903560b0..1fe9da16 100644
--- a/README.md
+++ b/README.md
@@ -328,35 +328,11 @@ class PostSerializer < ActiveModel::Serializer
 end
 ```
 
-Use the `:serializer` option to specify a custom serializer class:
+You may also use the `:serializer` option to specify a custom serializer class and the `:polymorphic` option to specify an association that is polymorphic (STI), e.g.:
 
 ```ruby
-class PostSerializer < ActiveModel::Serializer
-  attributes :id, :title, :body
-  has_one :author
   has_many :comments, :serializer => CommentShortSerializer
-
-  def include_associations!
-    include! :author if scope.admin?
-    include! :comments unless object.comments_disabled?
-  end
-end
-```
-
-Use the `:polymorphic` option to specify an association that is polymorphic (STI):
-
-```ruby
-class PostSerializer < ActiveModel::Serializer
-  attributes :id, :title, :body
-  has_one :author
-  has_many :comments
   has_one :reviewer, :polymorphic => true
-
-  def include_associations!
-    include! :author if scope.admin?
-    include! :comments unless object.comments_disabled?
-  end
-end
 ```
 
 ## Embedding Associations