diff --git a/packages/core/utils/index.js b/packages/core/utils/index.js
index 92169ac50..2d9702f58 100644
--- a/packages/core/utils/index.js
+++ b/packages/core/utils/index.js
@@ -1,3 +1,6 @@
+var tfun = require("transfun/transfun.js").tfun;
+tfun = global.tfun;
+
 export function extractValues(obj) {
   const t = [];
   for (let key in obj) {