diff --git a/tailroute.go b/tailroute.go
index 01e4d1695677207fc1c33e4eab9bfffeccaa7396..c7539edce67827ffaa49eea96dd80422d7e25bab 100644
--- a/tailroute.go
+++ b/tailroute.go
@@ -9,6 +9,7 @@ 	"log"
 	"net"
 	"net/http"
 	"os"
+	"path/filepath"
 	"time"
 
 	"tailscale.com/ipn"
@@ -84,7 +85,7 @@ 		return fmt.Errorf("could not create data dir: %w", err)
 	}
 	s := &tsnet.Server{
 		Hostname: hostname,
-		Dir:      dataDir,
+		Dir:      filepath.Join(dataDir, "tsnet"),
 	}
 	if err := s.Start(); err != nil {
 		return err