diff --git a/core/modules/aggregator/lib/Drupal/aggregator/Tests/AggregatorTestBase.php b/core/modules/aggregator/lib/Drupal/aggregator/Tests/AggregatorTestBase.php
index c061c3b..d182289 100644
--- a/core/modules/aggregator/lib/Drupal/aggregator/Tests/AggregatorTestBase.php
+++ b/core/modules/aggregator/lib/Drupal/aggregator/Tests/AggregatorTestBase.php
@@ -20,7 +20,7 @@
    *
    * @var array
    */
-  public static $modules = array('node', 'aggregator', 'aggregator_test');
+  public static $modules = array('node', 'aggregator', 'aggregator_test', 'views');
 
   function setUp() {
     parent::setUp();
diff --git a/core/modules/comment/lib/Drupal/comment/Tests/CommentRssTest.php b/core/modules/comment/lib/Drupal/comment/Tests/CommentRssTest.php
index 28e199e..86d256a 100644
--- a/core/modules/comment/lib/Drupal/comment/Tests/CommentRssTest.php
+++ b/core/modules/comment/lib/Drupal/comment/Tests/CommentRssTest.php
@@ -11,6 +11,14 @@
  * Tests for Comment module integration with RSS feeds.
  */
 class CommentRssTest extends CommentTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = array('views');
+
   public static function getInfo() {
     return array(
       'name' => 'Comment RSS',
diff --git a/core/modules/node/config/views.view.frontpage.yml b/core/modules/node/config/views.view.frontpage.yml
index 86ff0f4..498a941 100644
--- a/core/modules/node/config/views.view.frontpage.yml
+++ b/core/modules/node/config/views.view.frontpage.yml
@@ -153,4 +153,4 @@ human_name: Frontpage
 module: node
 id: frontpage
 tag: ''
-langcode: und
+langcode: en
diff --git a/core/modules/system/config/system.rss.yml b/core/modules/system/config/system.rss.yml
index 6efa3bd..69e64da 100644
--- a/core/modules/system/config/system.rss.yml
+++ b/core/modules/system/config/system.rss.yml
@@ -2,4 +2,4 @@ channel:
   description: ''
 items:
   limit: '10'
-  view_mode: fulltext
+  view_mode: rss