diff --git a/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
index f044cc1..11635ec 100644
--- a/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
+++ b/core/tests/Drupal/Tests/Core/Language/LanguageUnitTest.php
@@ -52,13 +52,13 @@ public function testGetName() {
   }
 
   /**
-   * @covers \Drupal\Core\Language\Language::getLangcode()
-   * @covers \Drupal\Core\Language\Language::setLangcode()
+   * @covers \Drupal\Core\Language\Language::getId()
+   * @covers \Drupal\Core\Language\Language::setId()
    */
   public function testGetLangcode() {
     $language_code = $this->randomName(2);
-    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setLangcode($language_code)));
-    $this->assertSame($language_code, $this->language->getLangcode());
+    $this->assertSame(spl_object_hash($this->language), spl_object_hash($this->language->setId($language_code)));
+    $this->assertSame($language_code, $this->language->getId());
   }
 
   /**