diff --git a/proxy/shadowsocks_2022/outbound.go b/proxy/shadowsocks_2022/outbound.go
index f1195950d..5d1b9c9fb 100644
--- a/proxy/shadowsocks_2022/outbound.go
+++ b/proxy/shadowsocks_2022/outbound.go
@@ -82,6 +82,7 @@ func (o *Outbound) Process(ctx context.Context, link *transport.Link, dialer int
 	if err != nil {
 		return errors.New("failed to connect to server").Base(err)
 	}
+	defer connection.Close()
 
 	if session.TimeoutOnlyFromContext(ctx) {
 		ctx, _ = context.WithCancel(context.Background())