diff --git a/src/core/render/index.js b/src/core/render/index.js
index f5de5915..61ea0e88 100644
--- a/src/core/render/index.js
+++ b/src/core/render/index.js
@@ -185,6 +185,7 @@ function renderMain(html) {
         mountElm.setAttribute(isVueAttr, '');
 
         if (vueVersion === 2) {
+          vueConfig.el = undefined;
           new window.Vue(vueConfig).$mount(mountElm);
         } else if (vueVersion === 3) {
           const app = window.Vue.createApp(vueConfig);