diff --git a/guestbook/submit.php b/guestbook/submit.php
index 5f6ffe4..b2c8893 100644
--- a/guestbook/submit.php
+++ b/guestbook/submit.php
@@ -30,7 +30,7 @@ $nlength = $ndata->nlength;
 
 # Setup JSON
 
-$newURL = "http://192.168.1.180:9890/guestbook/index.html";
+$newURL = "https://" . $_SERVER['SERVER_NAME'] . "/guestbook/index.html";
 
 # Check name and message
 if ($name == "") {