diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index 5ec106eb8e..8a6892a3ed 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Subclasses of ActionController::Caching::Sweeper should be Reloadable. [Rick Olson]
+
 * Document the :xhr option for verifications. #3666 [leeo]
 
 * Added :only and :except controls to skip_before/after_filter just like for when you add filters [DHH]
diff --git a/actionpack/lib/action_controller/caching.rb b/actionpack/lib/action_controller/caching.rb
index 3f54e5d383..df25fed3b2 100644
--- a/actionpack/lib/action_controller/caching.rb
+++ b/actionpack/lib/action_controller/caching.rb
@@ -521,9 +521,10 @@ module ActionController #:nodoc:
       class Sweeper < ActiveRecord::Observer #:nodoc:
         attr_accessor :controller
 
-        # ActiveRecord::Observer will mark this class as reloadable even though it should be
+        # ActiveRecord::Observer will mark this class as reloadable even though it should not be.
+        # However, subclasses of ActionController::Caching::Sweeper should be Reloadable
         def self.included_modules
-          super() - [ Reloadable ]
+          self == Sweeper ? super() - [ Reloadable ] : super()
         end
 
         def before(controller)