diff --git a/dialer/mws/dialer.go b/dialer/mws/dialer.go
index 00c99207..3f777112 100644
--- a/dialer/mws/dialer.go
+++ b/dialer/mws/dialer.go
@@ -176,6 +176,7 @@ func (d *mwsDialer) initSession(ctx context.Context, host string, conn net.Conn,
 	urlObj := url.URL{Scheme: "ws", Host: host, Path: d.md.path}
 	if d.tlsEnabled {
 		urlObj.Scheme = "wss"
+		d.options.TLSConfig.ServerName = host
 		dialer.TLSClientConfig = d.options.TLSConfig
 		dialer.NetDialTLSContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
 			client, err := util.NewUTLSWebSocketClient(conn, d.options.TLSConfig, d.md.useH2)
diff --git a/dialer/ws/dialer.go b/dialer/ws/dialer.go
index 519dadb1..f817d54d 100644
--- a/dialer/ws/dialer.go
+++ b/dialer/ws/dialer.go
@@ -114,6 +114,7 @@ func (d *wsDialer) Handshake(ctx context.Context, conn net.Conn, options ...dial
 	urlObj := url.URL{Scheme: "ws", Host: host, Path: d.md.path}
 	if d.tlsEnabled {
 		urlObj.Scheme = "wss"
+		d.options.TLSConfig.ServerName = host
 		dialer.TLSClientConfig = d.options.TLSConfig
 		dialer.NetDialTLSContext = func(ctx context.Context, network, addr string) (net.Conn, error) {
 			client, err := util.NewUTLSWebSocketClient(conn, d.options.TLSConfig, d.md.useH2)