diff --git a/babel.config.js b/babel.config.js
index 4df19493..b5ac4e77 100644
--- a/babel.config.js
+++ b/babel.config.js
@@ -47,6 +47,12 @@ module.exports = function(api) {
           loose: true
         }
       ],
+      [
+        '@babel/plugin-proposal-private-methods',
+        {
+          loose: true
+        }
+      ],
       [
         '@babel/plugin-proposal-object-rest-spread',
         {