diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
index 078a548..980aedb 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigStorageController.php
@@ -498,7 +498,7 @@ public function importDelete($name, Config $new_config, Config $old_config) {
    * {@inheritdoc}
    */
   public function getExport(ConfigEntityInterface $entity) {
-    // Read the raw config data and encode it as YAML.
+    // Read the raw config data and encode it for output.
     $prefix = $this->getConfigPrefix();
     $data = $this->configStorage->read($prefix . $entity->id());
     return $this->configStorage->encode($data);
diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityExportFormTest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityExportFormTest.php
index 8e208cf..ae943a4 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityExportFormTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityExportFormTest.php
@@ -39,6 +39,7 @@ public function testConfigTestExport() {
     $element = $this->xpath('//textarea[@id="edit-export"]');
     $this->assertTrue(!empty($element), 'Textarea with config export found.');
 
+    // This assertion assumes the file storage uses YAML.
     $config_entity = entity_load('config_test', 'dotted.default');
     $uuid = $config_entity->uuid();
     $expected_export = array();
diff --git a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityListTest.php b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityListTest.php
index f97d6cf..cb648ad 100644
--- a/core/modules/config/lib/Drupal/config/Tests/ConfigEntityListTest.php
+++ b/core/modules/config/lib/Drupal/config/Tests/ConfigEntityListTest.php
@@ -65,6 +65,12 @@ function testList() {
         'options' => $uri['options'],
         'weight' => 20,
       ),
+      'export' => array(
+        'title' => t('Export'),
+        'href' => $uri['path'] . '/export',
+        'options' => $uri['options'],
+        'weight' => 30,
+      ),
       'delete' => array (
         'title' => t('Delete'),
         'href' => $uri['path'] . '/delete',
@@ -138,6 +144,12 @@ function testList() {
         'options' => $uri['options'],
         'weight' => 10,
       ),
+      'export' => array(
+        'title' => t('Export'),
+        'href' => $uri['path'] . '/export',
+        'options' => $uri['options'],
+        'weight' => 30,
+      ),
       'delete' => array(
         'title' => t('Delete'),
         'href' => $uri['path'] . '/delete',