diff --git a/railties/guides/source/rails_on_rack.textile b/railties/guides/source/rails_on_rack.textile
index 05581f943f..1164ed821d 100644
--- a/railties/guides/source/rails_on_rack.textile
+++ b/railties/guides/source/rails_on_rack.textile
@@ -101,7 +101,7 @@ use Rack::Lock
 use ActionController::Failsafe
 use ActionController::Session::CookieStore, , {:secret=>"<secret>", :session_key=>"_<app>_session"}
 use Rails::Rack::Metal
-use ActionController::RewindableInput
+use ActionDispatch::RewindableInput
 use ActionController::ParamsParser
 use Rack::MethodOverride
 use Rack::Head
diff --git a/railties/lib/initializer.rb b/railties/lib/initializer.rb
index 8eb4212737..c9716f508a 100644
--- a/railties/lib/initializer.rb
+++ b/railties/lib/initializer.rb
@@ -568,7 +568,7 @@ Run `rake gems:install` to install the missing gems.
       Rails::Rack::Metal.metal_paths += plugin_loader.engine_metal_paths
 
       configuration.middleware.insert_before(
-        :"ActionController::RewindableInput",
+        :"ActionDispatch::RewindableInput",
         Rails::Rack::Metal, :if => Rails::Rack::Metal.metals.any?)
     end