diff --git a/plugins/newsletter/lib/newsletter_plugin/newsletter.rb b/plugins/newsletter/lib/newsletter_plugin/newsletter.rb
index 7a7fe05..be58ae6 100644
--- a/plugins/newsletter/lib/newsletter_plugin/newsletter.rb
+++ b/plugins/newsletter/lib/newsletter_plugin/newsletter.rb
@@ -1,6 +1,6 @@
 require 'csv'
 
-class NewsletterPlugin::Newsletter < Noosfero::Plugin::ActiveRecord
+class NewsletterPlugin::Newsletter < ActiveRecord::Base
 
   belongs_to :environment
   belongs_to :person
diff --git a/plugins/shopping_cart/db/migrate/20131226125124_move_shopping_cart_purchase_order_to_orders_plugin_order.rb b/plugins/shopping_cart/db/migrate/20131226125124_move_shopping_cart_purchase_order_to_orders_plugin_order.rb
index a8a5090..dbd57dc 100644
--- a/plugins/shopping_cart/db/migrate/20131226125124_move_shopping_cart_purchase_order_to_orders_plugin_order.rb
+++ b/plugins/shopping_cart/db/migrate/20131226125124_move_shopping_cart_purchase_order_to_orders_plugin_order.rb
@@ -1,7 +1,7 @@
 OrdersPlugin.send :remove_const, :Item if defined? OrdersPlugin::Item
 OrdersPlugin.send :remove_const, :Order if defined? OrdersPlugin::Order
 
-class ShoppingCartPlugin::PurchaseOrder < Noosfero::Plugin::ActiveRecord
+class ShoppingCartPlugin::PurchaseOrder < ActiveRecord::Base
   acts_as_having_settings :field => :data
 
   module Status
@@ -16,10 +16,10 @@ class Profile
   has_many :orders, :class_name => 'OrdersPlugin::Order'
 end
 
-class OrdersPlugin::Item < Noosfero::Plugin::ActiveRecord
+class OrdersPlugin::Item < ActiveRecord::Base
   belongs_to :order, :class_name => 'OrdersPlugin::Order'
 end
-class OrdersPlugin::Order < Noosfero::Plugin::ActiveRecord
+class OrdersPlugin::Order < ActiveRecord::Base
   has_many :items, :class_name => 'OrdersPlugin::Item', :foreign_key => :order_id
 
   extend CodeNumbering::ClassMethods
--
libgit2 0.21.2