diff --git a/babel.config.js b/babel.config.js
index 84888b6197b..b58805dff56 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -66,6 +66,12 @@ module.exports = function(api) {
         {
           async: false
         }
+      ],
+      [
+        '@babel/plugin-proposal-private-methods',
+        {
+          loose: true
+        }
       ]
     ].filter(Boolean)
   }