diff --git a/modules/locale/locale.test b/modules/locale/locale.test
index 6dad7e0..4b3197e 100644
--- a/modules/locale/locale.test
+++ b/modules/locale/locale.test
@@ -1901,7 +1901,7 @@ class LocaleUILanguageNegotiationTest extends DrupalWebTestCase {
 
     // Setup for domain negotiation, first configure the language to have domain
     // URL.
-    $edit = array('prefix' => '', 'domain' => "http://$language_domain");
+    $edit = array('prefix' => '', 'domain' => "https://$language_domain:99");
     $this->drupalPost("admin/config/regional/language/edit/$language", $edit, t('Save language'));
     // Set the site to use domain language negotiation.