diff --git a/core/tests/Drupal/Tests/Core/Entity/EntityUrlTest.php b/core/tests/Drupal/Tests/Core/Entity/EntityUrlTest.php
index 8b9852c..6b67975 100644
--- a/core/tests/Drupal/Tests/Core/Entity/EntityUrlTest.php
+++ b/core/tests/Drupal/Tests/Core/Entity/EntityUrlTest.php
@@ -66,10 +66,13 @@ public function testUrlInfo($entity_class, $link_template, $expected, $langcode
       $this->assertEquals($langcode, $uri->getOption('language')->getId());
     }
     else {
-      // The expected langcode for a config entity is 'en', because it sets the
-      // value as default property.
-      $expected_langcode = $entity instanceof ConfigEntityInterface ? 'en' : LanguageInterface::LANGCODE_NOT_SPECIFIED;
-      $this->assertEquals($expected_langcode, $uri->getOption('language')->getId());
+      if ($entity instanceof ConfigEntityInterface) {
+        // Config entities do not provide a language with their URIs.
+        $this->assertEquals(NULL, $uri->getOption('language'));
+      }
+      else {
+        $this->assertEquals(LanguageInterface::LANGCODE_NOT_SPECIFIED, $uri->getOption('language')->getId());
+      }
     }
   }