diff --git a/extra/healthcheck.js b/extra/healthcheck.js
index ba3569db7..99f748fb5 100644
--- a/extra/healthcheck.js
+++ b/extra/healthcheck.js
@@ -1,3 +1,6 @@
+/*
+ * This script should be run after a period of time (180s), because the server may need some time to prepare.
+ */
 process.env.NODE_TLS_REJECT_UNAUTHORIZED = "0";
 
 let client;