diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index 7b66911..63c6fc9 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -1395,7 +1395,7 @@ function install_retrieve_file($uri, $destination) {
  */
 function install_check_localization_server($uri) {
   try {
-    \Drupal::httpClient()->head($uri);
+    \Drupal::httpClient()->head($uri, array('verify' => false));
     return TRUE;
   }
   catch (RequestException $e) {