diff --git a/modules/simpletest/drupal_web_test_case.php b/modules/simpletest/drupal_web_test_case.php
index 5c39cfc..5d4daa1 100644
--- a/modules/simpletest/drupal_web_test_case.php
+++ b/modules/simpletest/drupal_web_test_case.php
@@ -1343,6 +1343,7 @@ class DrupalWebTestCase extends DrupalTestCase {
     $this->originalUser = $user;
     drupal_save_session(FALSE);
     $user = user_load(1);
+    user_login_finalize();
 
     // Restore necessary variables.
     variable_set('install_task', 'done');