diff --git a/core/modules/content_translation/src/Tests/ContentTranslationSettingsTest.php b/core/modules/content_translation/src/Tests/ContentTranslationSettingsTest.php
index 445fd5b49ca4c1a31687e4be8f6d16c54d0b149a..556e419dfeadfe8b5da49d2bc927022d8864897a 100644
--- a/core/modules/content_translation/src/Tests/ContentTranslationSettingsTest.php
+++ b/core/modules/content_translation/src/Tests/ContentTranslationSettingsTest.php
@@ -36,7 +36,7 @@ function setUp() {
     $this->container->get('comment.manager')->addDefaultField('node', 'article', 'comment_article', CommentItemInterface::OPEN, 'comment_article');
     $this->container->get('comment.manager')->addDefaultField('node', 'page', 'comment_page');
 
-    $admin_user = $this->drupalCreateUser(array('access administration pages', 'administer languages', 'administer content translation', 'administer content types', 'administer node fields', 'administer comment fields', 'administer comments', 'administer comment types'));
+    $admin_user = $this->drupalCreateUser(array('access administration pages', 'administer languages', 'administer content translation', 'administer content types', 'administer node fields', 'administer comment fields', 'administer comments', 'administer comment types', 'administer account settings'));
     $this->drupalLogin($admin_user);
   }
 
@@ -183,6 +183,23 @@ function testSettingsUI() {
     }
   }
 
+  /**
+   * Tests the language settings checkbox on account settings page.
+   */
+  function testAccountLanguageSettingsUI() {
+    // Make sure the checkbox is available and not checked by default.
+    $this->drupalGet('admin/config/people/accounts');
+    $this->assertField('language[content_translation]');
+    $this->assertNoFieldChecked('edit-language-content-translation');
+
+    $edit = array(
+      'language[content_translation]' => TRUE,
+    );
+    $this->drupalPostForm('admin/config/people/accounts', $edit, t('Save configuration'));
+    $this->drupalGet('admin/config/people/accounts');
+    $this->assertFieldChecked('edit-language-content-translation');
+  }
+
   /**
    * Asserts that translatability has the expected value for the given bundle.
    *
diff --git a/core/modules/user/src/AccountSettingsForm.php b/core/modules/user/src/AccountSettingsForm.php
index 94c4baebd5c497849fefe24fdcc8da09d3095213..fa39ac253af4599e1530d2944d2a388a27977e93 100644
--- a/core/modules/user/src/AccountSettingsForm.php
+++ b/core/modules/user/src/AccountSettingsForm.php
@@ -59,6 +59,7 @@ public function getFormId() {
    * Implements \Drupal\Core\Form\FormInterface::buildForm().
    */
   public function buildForm(array $form, array &$form_state) {
+    $form = parent::buildForm($form, $form_state);
     $config = $this->config('user.settings');
     $mail_config = $this->config('user.mail');
     $site_config = $this->config('system.site');
@@ -401,7 +402,7 @@ public function buildForm(array $form, array &$form_state) {
       '#rows' => 3,
     );
 
-    return parent::buildForm($form, $form_state);
+    return $form;
   }
 
   /**