diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
index d635a7f598..35d4fc8487 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php
@@ -302,6 +302,7 @@ class FrameworkExtension extends Extension
         $this->addClassesToCompile(array(
             'Symfony\\Bundle\\FrameworkBundle\\EventListener\\SessionListener',
             'Symfony\\Component\\HttpFoundation\\Session\\Storage\\SessionStorageInterface',
+            'Symfony\\Component\\HttpFoundation\\Session\\Storage\\AbstractSessionStorage',
             $container->getDefinition('session')->getClass(),
         ));