diff --git a/infra/conf/shadowsocks.go b/infra/conf/shadowsocks.go
index f0e778d5..422b1903 100644
--- a/infra/conf/shadowsocks.go
+++ b/infra/conf/shadowsocks.go
@@ -59,7 +59,7 @@ func (v *ShadowsocksServerConfig) Build() (proto.Message, error) {
 				return nil, newError("Shadowsocks password is not specified.")
 			}
 			if account.CipherType < shadowsocks.CipherType_AES_128_GCM ||
-				account.CipherType > shadowsocks.CipherType_CHACHA20_POLY1305 {
+				account.CipherType > shadowsocks.CipherType_XCHACHA20_POLY1305 {
 				return nil, newError("unsupported cipher method: ", user.Cipher)
 			}
 			config.Users = append(config.Users, &protocol.User{