diff --git a/option/tailscale.go b/option/tailscale.go
index d04f81bf8..59d7101b9 100644
--- a/option/tailscale.go
+++ b/option/tailscale.go
@@ -135,7 +135,7 @@ type DERPMeshOptions struct {
 }
 
 type _DERPSTUNListenOptions struct {
-	Enabled bool
+	Enabled bool `json:"enabled,omitempty"`
 	ListenOptions
 }