diff --git a/IPtProxy.go/IPtProxy.go b/IPtProxy.go/IPtProxy.go
index 57c569f48587dfd8efc9586ca3dac3d5a634b0d4..c2b9b2f5b1a5511ebf5a5f80fa839b40fb0c41c5 100644
--- a/IPtProxy.go/IPtProxy.go
+++ b/IPtProxy.go/IPtProxy.go
@@ -310,6 +310,8 @@ func StartSnowflakeProxy(capacity int, broker, relay, stun, natProbe, logFile st
 		RelayURL:           relay,
 		NATProbeURL:        natProbe,
 		ProxyType:          "iptproxy",
+		RelayDomainNamePattern: "snowflake.torproject.net$",
+		AllowNonTLSRelay: false,
 		ClientConnectedCallback: func() {
 			if clientConnected != nil {
 				clientConnected.Connected()