diff --git a/core/modules/language/lib/Drupal/language/Tests/LanguageSwitchingTest.php b/core/modules/language/lib/Drupal/language/Tests/LanguageSwitchingTest.php
index 1a5caf5..60c47a0 100644
--- a/core/modules/language/lib/Drupal/language/Tests/LanguageSwitchingTest.php
+++ b/core/modules/language/lib/Drupal/language/Tests/LanguageSwitchingTest.php
@@ -161,7 +161,7 @@ function testLanguageLinkActiveClass() {
    */
   private function translateLanguage($langcode, $label) {
     $file_storage = new FileStorage($this->configDirectories[CONFIG_ACTIVE_DIRECTORY]);
-    $file_storage->write('locale.config.' . $langcode . '.language.entity.' . $langcode,
+    $file_storage->write('language.config.' . $langcode . '.language.entity.' . $langcode,
         array('label' => $label));
   }