diff --git a/rootfs/usr/local/nginx/conf/conf.d/include/hsts.conf b/rootfs/usr/local/nginx/conf/conf.d/include/hsts.conf
index ad81d1d291..a3a5cd7ab5 100644
--- a/rootfs/usr/local/nginx/conf/conf.d/include/hsts.conf
+++ b/rootfs/usr/local/nginx/conf/conf.d/include/hsts.conf
@@ -4,4 +4,4 @@ more_set_headers "X-Content-Type-Options: nosniff";
 more_set_headers "Referrer-Policy: strict-origin-when-cross-origin";
 more_set_headers "Content-Security-Policy: $content_security_policy";
 
-more_set_headers "Strict-Transport-Security: $hsts_header";
+more_set_headers "Strict-Transport-Security: $hsts_header"; # means: max-age=63072000; includeSubDomains; preload