diff --git a/includes/locale.inc b/includes/locale.inc
index f667d30..670f757 100644
--- a/includes/locale.inc
+++ b/includes/locale.inc
@@ -207,10 +207,16 @@ function locale_language_from_url($languages) {
 
     case LOCALE_LANGUAGE_NEGOTIATION_URL_DOMAIN:
       foreach ($languages as $language) {
-        $host = parse_url($language->domain, PHP_URL_HOST);
-        if ($host && ($_SERVER['HTTP_HOST'] == $host)) {
-          $language_url = $language->language;
-          break;
+        // Skip check if the language doesn't have a domain.
+        if ($language->domain) {
+          // Only compare the domains not the protocols or ports.
+          // Remove protocol and add http:// so parse_url works
+          $host = 'http://' . str_replace(array('http://', 'https://'), array('', ''), $language->domain);
+          $host = parse_url($host, PHP_URL_HOST);
+          if ($_SERVER['HTTP_HOST'] == $host) {
+            $language_url = $language->language;
+            break;
+          }
         }
       }
       break;
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.