diff --git a/tools/api.go b/tools/api.go
index bbe0a69..2071356 100644
--- a/tools/api.go
+++ b/tools/api.go
@@ -61,8 +61,12 @@ func (s State) String() string {
 type API struct{}
 
 func (a *API) Discovered(infos []*beego.ControllerInfo) {
-	respondToDiscovery := func(m NATSResponse) {
-		a.SubscribeRouter(infos)
+	respondToDiscovery := func(resp NATSResponse) {
+		var m map[string]interface{}
+		json.Unmarshal(resp.Payload, &m)
+		if len(m) == 0 {
+			a.SubscribeRouter(infos)
+		}
 	}
 	a.ListenRouter(respondToDiscovery)
 	a.SubscribeRouter(infos)