diff --git a/lib/chanko/railtie.rb b/lib/chanko/railtie.rb
index c5c804f..663206d 100644
--- a/lib/chanko/railtie.rb
+++ b/lib/chanko/railtie.rb
@@ -7,11 +7,6 @@ class Railtie < Rails::Railtie
       ActiveSupport.on_load :action_controller do
         ::ActionController::Base.send(:include, Controller, Invoker, UnitProxyProvider)
       end
-      ActiveSupport.on_load :active_record do
-        ::ActiveRecord::Base.send(:include, UnitProxyProvider)
-        ::ActiveRecord::Relation.send(:include, UnitProxyProvider)
-        ::ActiveRecord::Associations::CollectionAssociation.send(:include, UnitProxyProvider)
-      end
     end
 
 
diff --git a/lib/chanko/unit/extender.rb b/lib/chanko/unit/extender.rb
index 753558a..20f5945 100644
--- a/lib/chanko/unit/extender.rb
+++ b/lib/chanko/unit/extender.rb
@@ -1,4 +1,3 @@
-require "chanko/unit/extender/active_record_class_methods"
 require "chanko/unit/extender/extension"
 
 module Chanko
diff --git a/lib/chanko/unit/extender/active_record_class_methods.rb b/lib/chanko/unit/extender/active_record_class_methods.rb
deleted file mode 100644
index 929fff3..0000000
--- a/lib/chanko/unit/extender/active_record_class_methods.rb
+++ /dev/null
@@ -1,57 +0,0 @@
-module Chanko
-  module Unit
-    class Extender
-      module ActiveRecordClassMethods
-        delegate(
-          :apply_modules,
-          :arel,
-          :array_of_strings?,
-          :build_arel,
-          :build_joins,
-          :build_select,
-          :build_where,
-          :create_with,
-          :custom_join_sql,
-          :eager_load,
-          :extending,
-          :from,
-          :group,
-          :having,
-          :includes,
-          :joins,
-          :limit,
-          :lock,
-          :offset,
-          :order,
-          :preload,
-          :readonly,
-          :reorder,
-          :reverse_order,
-          :reverse_sql_order,
-          :scope,
-          :select,
-          :where,
-          :to => :@mod
-        )
-
-        %w[belongs_to has_many has_one].each do |method_name|
-          class_eval <<-EOS
-            def #{method_name}(*args, &block)
-              label   = args.shift.to_s
-              name    = @prefix + label
-              options = args.extract_options!
-              options = options.reverse_merge(:class_name => label.singularize.camelize)
-              args << options
-              @mod.#{method_name}(name.to_sym, *args, &block)
-            end
-          EOS
-        end
-
-        def scope(*args, &block)
-          name = @prefix + args.shift.to_s
-          @mod.scope(name, *args)
-        end
-      end
-    end
-  end
-end
diff --git a/lib/chanko/unit/extender/extension.rb b/lib/chanko/unit/extender/extension.rb
index a6b89ef..60601a2 100644
--- a/lib/chanko/unit/extender/extension.rb
+++ b/lib/chanko/unit/extender/extension.rb
@@ -2,8 +2,6 @@ module Chanko
   module Unit
     class Extender
       class Extension < Module
-        include ActiveRecordClassMethods
-
         def initialize(mod, prefix = nil, &block)
           @mod    = mod
           @prefix = prefix