diff --git a/htdocs/main.inc.php b/htdocs/main.inc.php
index 10e836af1c9..ec067e38c1b 100644
--- a/htdocs/main.inc.php
+++ b/htdocs/main.inc.php
@@ -3275,6 +3275,7 @@ if (!function_exists("llxFooter")) {
 						?>
 							<script>
 							jQuery(document).ready(function (tmp) {
+								console.log("Try Ping with hash_unique_id is md5('dolibarr'+instance_unique_id)");
 								$.ajax({
 									  method: "POST",
 									  url: "<?php echo $url_for_ping ?>",