diff --git a/example/componentUpdate/App.js b/example/componentUpdate/App.js
index 9dfb01d..14f5f9f 100644
--- a/example/componentUpdate/App.js
+++ b/example/componentUpdate/App.js
@@ -8,6 +8,7 @@ export default {
   name: "App",
   setup() {
     const msg = ref("123");
+    window.msg = msg
 
     const changeChildProps = () => {
       msg.value = "456";