diff --git a/protocol/tailscale/endpoint.go b/protocol/tailscale/endpoint.go
index c2eca8fe..c0be45cc 100644
--- a/protocol/tailscale/endpoint.go
+++ b/protocol/tailscale/endpoint.go
@@ -73,7 +73,7 @@ var (
 )
 
 func init() {
-	version.SetVersion(tailscaleroot.VersionDotTxt + " (sing-box " + C.Version + ")")
+	version.SetVersion(strings.TrimSpace(tailscaleroot.VersionDotTxt) + "-0-(sing-box " + C.Version + ")")
 }
 
 func RegisterEndpoint(registry *endpoint.Registry) {