diff --git a/babel.config.js b/babel.config.js
index d8e3bb1eea17..ee30354d0dc4 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -45,6 +45,7 @@ module.exports = {
      **/
     ['@babel/plugin-proposal-decorators', { legacy: true }],
     ['@babel/plugin-proposal-class-properties', { loose: true }],
+    ['@babel/plugin-proposal-private-methods', { loose: true }],
     [
       '@babel/plugin-transform-runtime',
       {