diff --git a/core/modules/contextual/lib/Drupal/contextual/Tests/ContextualBlockCacheTest.php b/core/modules/contextual/lib/Drupal/contextual/Tests/ContextualBlockCacheTest.php
index be06641..dcb8bc1 100644
--- a/core/modules/contextual/lib/Drupal/contextual/Tests/ContextualBlockCacheTest.php
+++ b/core/modules/contextual/lib/Drupal/contextual/Tests/ContextualBlockCacheTest.php
@@ -13,6 +13,14 @@ use Drupal\simpletest\WebTestBase;
  * Tests to ensure that contextual links in blocks are cached properly.
  */
 class ContextualBlockCacheTest extends WebTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('contextual', 'block', 'forum');
+
   public static function getInfo() {
     return array(
       'name' => 'Contextual link block caching',
@@ -22,7 +30,7 @@ class ContextualBlockCacheTest extends WebTestBase {
   }
 
   function setUp() {
-    parent::setUp(array('contextual', 'block', 'forum'));
+    parent::setUp();
     $web_user = $this->drupalCreateUser(array('access content', 'access contextual links', 'administer blocks'));
     $this->drupalLogin($web_user);
   }