diff --git a/core/modules/simpletest/src/BrowserTestBase.php b/core/modules/simpletest/src/BrowserTestBase.php
index 1ce9cd1..dc64c20 100644
--- a/core/modules/simpletest/src/BrowserTestBase.php
+++ b/core/modules/simpletest/src/BrowserTestBase.php
@@ -181,11 +181,22 @@
   protected $customTranslations;
 
   /**
-   * Default mink driver class name.
+   * Mink driver to use from available drivers.
+   *
+   * @see \Drupal\simpletest\BrowserTestBase::minkDriver
    *
    * @var string.
    */
-  protected $defaultMinkDriverClassName = 'GoutteDriver';
+  protected $minkDriver = 'goutte';
+
+  /**
+   * An array of available Mink drivers.
+   *
+   * @var array
+   */
+  protected $minkAvailableDrivers = array(
+    'goutte' => 'GoutteDriver',
+  );
 
   /**
    * Mink session manager.
@@ -198,11 +209,12 @@
    * Initializes Mink sessions.
    */
   protected function initMink() {
-    $driver = new  $this->defaultMinkDriverClassName();
+    $driver = new $this->minkAvailableDrivers[$this->minkDriver]();
+    $driver = new GoutteDriver();
     $session = new Session($driver);
     $this->mink = new Mink();
-    $this->mink->registerSession('default', $session);
-    $this->mink->setDefaultSessionName('default');
+    $this->mink->registerSession($this->minkDriver, $session);
+    $this->mink->setDefaultSessionName($this->minkDriver);
     $this->registerSessions();
     return $session;
   }