diff --git a/core/modules/system/lib/Drupal/system/Tests/Upgrade/UpgradePathTestBase.php b/core/modules/system/lib/Drupal/system/Tests/Upgrade/UpgradePathTestBase.php
index 30892c2..bf2b9c0 100644
--- a/core/modules/system/lib/Drupal/system/Tests/Upgrade/UpgradePathTestBase.php
+++ b/core/modules/system/lib/Drupal/system/Tests/Upgrade/UpgradePathTestBase.php
@@ -147,7 +147,7 @@ protected function setUp() {
     drupal_save_session(FALSE);
     // Load values for uid 1.
     $values = db_query('SELECT * FROM {users} WHERE uid = :uid', array(':uid' => 1))->fetchAssoc();
-    // Load rolest.
+    // Load roles of the user.
     $values['roles'] = array_merge(array(DRUPAL_AUTHENTICATED_RID), db_query('SELECT rid FROM {users_roles} WHERE uid = :uid', array(':uid' => 1))->fetchCol());
     // Create a new user session object.
     $user = new UserSession($values);