diff --git a/protocol/tailscale/endpoint.go b/protocol/tailscale/endpoint.go
index 7e5d3542..6120ccec 100644
--- a/protocol/tailscale/endpoint.go
+++ b/protocol/tailscale/endpoint.go
@@ -44,6 +44,7 @@ import (
 	"github.com/sagernet/sing/common/ntp"
 	"github.com/sagernet/sing/service"
 	"github.com/sagernet/sing/service/filemanager"
+	tailscaleroot "github.com/sagernet/tailscale"
 	_ "github.com/sagernet/tailscale/feature/relayserver"
 	"github.com/sagernet/tailscale/ipn"
 	tsDNS "github.com/sagernet/tailscale/net/dns"
@@ -70,7 +71,7 @@ var (
 )
 
 func init() {
-	version.SetVersion("sing-box " + C.Version)
+	version.SetVersion(tailscaleroot.VersionDotTxt + " (sing-box " + C.Version + ")")
 }
 
 func RegisterEndpoint(registry *endpoint.Registry) {