diff --git a/README.md b/README.md
index c7fc515..fb29ab1 100644
--- a/README.md
+++ b/README.md
@@ -260,8 +260,8 @@ Options:
           Can be specified multiple time
           Example:
            dns://1.1.1.1 for using udp
-           dns+https://1.1.1.1 for using dns over HTTPS
-           dns+tls://8.8.8.8 for using dns over TLS
+           dns+https://1.1.1.1?sni=loudflare-dns.com for using dns over HTTPS
+           dns+tls://8.8.8.8?sni=dns.google for using dns over TLS
           To use libc resolver, use
           system://0.0.0.0