diff --git a/cake/libs/controller/components/auth.php b/cake/libs/controller/components/auth.php
index 7f12d9842..fb2e0e48e 100644
--- a/cake/libs/controller/components/auth.php
+++ b/cake/libs/controller/components/auth.php
@@ -23,6 +23,7 @@ App::import('Core', 'Router', false);
 App::import('Core', 'Security', false);
 App::import('Core', 'CakeSession', false);
 App::import('Component', 'auth/base_authorize');
+App::import('Component', 'auth/base_authenticate');
 
 /**
  * Authentication control component class
diff --git a/cake/libs/controller/components/auth/digest_authenticate.php b/cake/libs/controller/components/auth/digest_authenticate.php
index 899701182..91d8ed270 100644
--- a/cake/libs/controller/components/auth/digest_authenticate.php
+++ b/cake/libs/controller/components/auth/digest_authenticate.php
@@ -13,7 +13,6 @@
  * @license       MIT License (http://www.opensource.org/licenses/mit-license.php)
  */
 App::import('Component', 'auth/base_authenticate');
-App::import('Core', 'String');
 
 /**
  * Digest Authentication adapter for AuthComponent.