diff --git a/src/index.js b/src/index.js
index e9524b1..fbe6d4a 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,8 +1,11 @@
-import '@babel/polyfill';
 import paint from './paint';
 import definition from './definition';
 import './main.less';
 
+if (!window._babelPolyfill) { // eslint-disable-line no-underscore-dangle
+  require('@babel/polyfill'); // eslint-disable-line global-require
+}
+
 export default {
   controller: [
     '$scope',