diff --git a/content/zh-cn/docs/concepts/services-networking/service-traffic-policy.md b/content/zh-cn/docs/concepts/services-networking/service-traffic-policy.md
index b291c17758..306f310dcb 100644
--- a/content/zh-cn/docs/concepts/services-networking/service-traffic-policy.md
+++ b/content/zh-cn/docs/concepts/services-networking/service-traffic-policy.md
@@ -75,7 +75,7 @@ metadata:
   name: my-service
 spec:
   selector:
-    app: MyApp
+    app.kubernetes.io/name: MyApp
   ports:
     - protocol: TCP
       port: 80