diff --git a/packages/vue-app/template/index.js b/packages/vue-app/template/index.js
index 15a2868e09..765c543a35 100644
--- a/packages/vue-app/template/index.js
+++ b/packages/vue-app/template/index.js
@@ -189,7 +189,7 @@ async function createApp(ssrContext, config = {}) {
     Vue[installKey] = true
     // Call Vue.use() to install the plugin into vm
     Vue.use(() => {
-      if (!Object.prototype.hasOwnProperty.call(Vue, key)) {
+      if (!Object.prototype.hasOwnProperty.call(Vue.prototype, key)) {
         Object.defineProperty(Vue.prototype, key, {
           get () {
             return this.$root.$options[key]