diff --git a/home/dns_test.go b/home/dns_test.go
index 49ff3212..52344279 100644
--- a/home/dns_test.go
+++ b/home/dns_test.go
@@ -1,10 +1,14 @@
 package home
 
 import (
+	"os"
 	"testing"
 )
 
 func TestResolveRDNS(t *testing.T) {
+	_ = os.RemoveAll(config.getDataDir())
+	defer func() { _ = os.RemoveAll(config.getDataDir()) }()
+
 	config.DNS.BindHost = "1.1.1.1"
 	initDNSServer()
 	if r := config.dnsctx.rdns.resolve("1.1.1.1"); r != "one.one.one.one" {