diff --git a/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php b/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
index a315eba..b37b0e7 100644
--- a/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
+++ b/core/lib/Drupal/Core/Config/Entity/ConfigEntityInterface.php
@@ -109,10 +109,11 @@ public function isSyncing();
    * entity change is part of an uninstall process, and skip executing your code
    * if that is the case.
    *
-   * For example, \Drupal\language\Entity\ConfigurableLanguage::preDelete()
-   * prevents the API from deleting the default language. However during an
-   * uninstall of the language module it is expected that the default language
-   * should be deleted.
+   * For example,
+   * \Drupal\language\Entity\ConfigurableLanguageInterface::preDelete() prevents
+   * the API from deleting the default language. However during an uninstall of
+   * the language module it is expected that the default language should be
+   * deleted.
    *
    * @return bool
    */
diff --git a/core/modules/language/src/Form/LanguageFormBase.php b/core/modules/language/src/Form/LanguageFormBase.php
index f463270..c18a526 100644
--- a/core/modules/language/src/Form/LanguageFormBase.php
+++ b/core/modules/language/src/Form/LanguageFormBase.php
@@ -49,7 +49,7 @@ public static function create(ContainerInterface $container) {
    * Common elements of the language addition and editing form.
    */
   public function commonForm(array &$form) {
-    /** @var $language \Drupal\language\Entity\ConfigurableLanguage */
+    /** @var \Drupal\language\ConfigurableLanguageInterface $language*/
     $language = $this->entity;
     if ($language->id()) {
       $form['langcode_view'] = array(
diff --git a/core/modules/language/src/Tests/LanguageConfigurationElementTest.php b/core/modules/language/src/Tests/LanguageConfigurationElementTest.php
index 4f3d880..ffd67a1 100644
--- a/core/modules/language/src/Tests/LanguageConfigurationElementTest.php
+++ b/core/modules/language/src/Tests/LanguageConfigurationElementTest.php
@@ -97,7 +97,7 @@ public function testDefaultLangcode() {
     $this->assertFalse($configurable_language->get('default'), 'The en language entity is not flagged as the default language.');
     $configurable_language = entity_load('configurable_language', 'cc');
     // Check calling the
-    // \Drupal\language\Entity\ConfigurableLanguage::isDefault() method
+    // \Drupal\language\Entity\ConfigurableLanguageInterface::isDefault() method
     // directly.
     $this->assertTrue($configurable_language->isDefault(), 'The cc language entity is flagged as the default language.');