diff --git a/core/modules/content_translation/content_translation.install b/core/modules/content_translation/content_translation.install
index 4c33938..47c00e7 100644
--- a/core/modules/content_translation/content_translation.install
+++ b/core/modules/content_translation/content_translation.install
@@ -18,12 +18,12 @@ function content_translation_install() {
   // Translation works when at least two languages are added.
   if (count(\Drupal::languageManager()->getLanguages()) < 2) {
     // @todo: Switch to Url::fromRoute() once https://www.drupal.org/node/2589967 is resolved.
-    $t_args = [':language_url' => Url::fromUri('internal:/admin/config/regional/language')->toUriString()];
+    $t_args = [':language_url' => Url::fromUri('internal:/admin/config/regional/language')->toString()];
     $message = t('This site has only a single language enabled. <a href=":language_url">Add at least one more language</a> in order to translate content.', $t_args);
     drupal_set_message($message, 'warning');
   }
   // Point the user to the content translation settings.
-  $t_args = [':settings_url' => Url::fromUri('internal:/admin/config/regional/content-language')->toUriString()];
+  $t_args = [':settings_url' => Url::fromUri('internal:/admin/config/regional/content-language')->toString()];
   $message = t('<a href=":settings_url">Enable translation</a> for <em>content types</em>, <em>taxonomy vocabularies</em>, <em>accounts</em>, or any other element you wish to translate.', $t_args);
   drupal_set_message($message, 'warning');
 }