diff --git a/actionpack/lib/action_controller.rb b/actionpack/lib/action_controller.rb
index dca07a0afc73a10b6ba1f4d1faf040b0f6343b10..3e779703672ad9bdd973d028bda6b86ba406e2e2 100644
--- a/actionpack/lib/action_controller.rb
+++ b/actionpack/lib/action_controller.rb
@@ -63,7 +63,6 @@ def self.load_all!
   autoload :RecordIdentifier, 'action_controller/record_identifier'
   autoload :Request, 'action_controller/request'
   autoload :RequestForgeryProtection, 'action_controller/request_forgery_protection'
-  autoload :RequestParser, 'action_controller/request_parser'
   autoload :Rescue, 'action_controller/rescue'
   autoload :Resources, 'action_controller/resources'
   autoload :Response, 'action_controller/response'