diff --git a/lib/rails/observers/action_controller/caching.rb b/lib/rails/observers/action_controller/caching.rb
index 8e2786d..ef0d2db 100644
--- a/lib/rails/observers/action_controller/caching.rb
+++ b/lib/rails/observers/action_controller/caching.rb
@@ -7,6 +7,6 @@ module Caching
       autoload :Sweeping, 'rails/observers/action_controller/caching/sweeping'
     end
 
-    include Sweeping if defined?(ActiveRecord)
+    ActionController::Base.extend Sweeping::ClassMethods if defined?(ActiveRecord)
   end
 end
diff --git a/lib/rails/observers/action_controller/caching/sweeping.rb b/lib/rails/observers/action_controller/caching/sweeping.rb
index 203c4e2..2d6ab9d 100644
--- a/lib/rails/observers/action_controller/caching/sweeping.rb
+++ b/lib/rails/observers/action_controller/caching/sweeping.rb
@@ -30,8 +30,6 @@ module Caching
     #     cache_sweeper OpenBar::Sweeper, :only => [ :edit, :destroy, :share ]
     #   end
     module Sweeping
-      extend ActiveSupport::Concern
-
       module ClassMethods #:nodoc:
         def cache_sweeper(*sweepers)
           configuration = sweepers.extract_options!