diff --git a/examples/__tests__/test-fungible-token.ava.js b/examples/__tests__/test-fungible-token.ava.js
index 857d6f17..6e147449 100644
--- a/examples/__tests__/test-fungible-token.ava.js
+++ b/examples/__tests__/test-fungible-token.ava.js
@@ -18,7 +18,6 @@ test.beforeEach(async (t) => {
 
     // Init the contracts
     await ft.call(ft, 'init', { prefix: 'a', totalSupply: '1000' });
-    await xcc.call(xcc, 'init', {});
 
     // Create test accounts
     const ali = await root.createSubAccount('ali');
diff --git a/examples/src/fungible-token-helper.js b/examples/src/fungible-token-helper.js
index c03c6879..68a076e4 100644
--- a/examples/src/fungible-token-helper.js
+++ b/examples/src/fungible-token-helper.js
@@ -3,7 +3,6 @@ import { NearBindgen, call, view } from "near-sdk-js";
 @NearBindgen({})
 class FungibleTokenHelper {
     constructor() {
-        super();
         this.data = "";
     }
 
diff --git a/examples/src/fungible-token.js b/examples/src/fungible-token.js
index 11d82289..0c3c1f39 100644
--- a/examples/src/fungible-token.js
+++ b/examples/src/fungible-token.js
@@ -1,24 +1,27 @@
 import {
-    NearContract,
     NearBindgen,
     call,
     view,
+    initialize,
     near,
     LookupMap,
     assert
 } from 'near-sdk-js'
 
-@NearBindgen
-class FungibleToken extends NearContract {
-    constructor({ prefix, totalSupply }) {
-        super()
-        this.accounts = new LookupMap(prefix)
-        this.totalSupply = totalSupply
-        // In a real world Fungible Token contract, storage management is required to denfense drain-storage attack
+
+@NearBindgen({ initRequired: true })
+class FungibleToken {
+    constructor() {
+        this.accounts = new LookupMap('a')
+        this.totalSupply = 0
     }
 
-    init() {
+    @initialize
+    init({ prefix, totalSupply }) {
+        this.accounts = new LookupMap(prefix)
+        this.totalSupply = totalSupply
         this.accounts.set(near.signerAccountId(), this.totalSupply)
+        // In a real world Fungible Token contract, storage management is required to denfense drain-storage attack
     }
 
     internalDeposit({ accountId, amount }) {
@@ -71,8 +74,4 @@ class FungibleToken extends NearContract {
     ftBalanceOf({ accountId }) {
         return this.accounts.get(accountId) || '0'
     }
-
-    default() {
-        return new FungibleToken({ prefix: '', totalSupply: 0 })
-    }
 }
diff --git a/lib/build-tools/near-bindgen-exporter.js b/lib/build-tools/near-bindgen-exporter.js
index 4b81cc12..4dfc8be7 100644
--- a/lib/build-tools/near-bindgen-exporter.js
+++ b/lib/build-tools/near-bindgen-exporter.js
@@ -49,7 +49,7 @@ export default function () {
                                 t.expressionStatement(t.callExpression(t.memberExpression(classId, t.identifier('_saveToStorage')), [t.identifier('_contract')]))
                                 : t.emptyStatement(),
                             // if (_result !== undefined) near.valueReturn(_contract._serialize(result));
-                            t.ifStatement(t.binaryExpression('!==', t.identifier('_result'), t.identifier('undefined')), t.expressionStatement(t.callExpression(t.memberExpression(t.identifier('near'), t.identifier('valueReturn')), [t.callExpression(t.memberExpression(classId, t.identifier('_serialize')), [t.identifier('_result')])]))),
+                            t.ifStatement(t.binaryExpression('!==', t.identifier('_result'), t.identifier('undefined')), t.expressionStatement(t.callExpression(t.memberExpression(t.identifier('env'), t.identifier('value_return')), [t.callExpression(t.memberExpression(classId, t.identifier('_serialize')), [t.identifier('_result')])]))),
                         ]))));
                         console.log(`Babel ${method} method export done`);
                     }
diff --git a/src/build-tools/near-bindgen-exporter.js b/src/build-tools/near-bindgen-exporter.js
index 22727159..8cd2780f 100644
--- a/src/build-tools/near-bindgen-exporter.js
+++ b/src/build-tools/near-bindgen-exporter.js
@@ -1,4 +1,5 @@
 import * as t from "@babel/types";
+
 export default function () {
   return {
     visitor: {
@@ -50,7 +51,7 @@ export default function () {
                 t.expressionStatement(t.callExpression(t.memberExpression(classId, t.identifier('_saveToStorage')), [t.identifier('_contract')]))
                 : t.emptyStatement(),
               // if (_result !== undefined) near.valueReturn(_contract._serialize(result));
-              t.ifStatement(t.binaryExpression('!==', t.identifier('_result'), t.identifier('undefined')), t.expressionStatement(t.callExpression(t.memberExpression(t.identifier('near'), t.identifier('valueReturn')), [t.callExpression(t.memberExpression(classId, t.identifier('_serialize')), [t.identifier('_result')])]))),
+              t.ifStatement(t.binaryExpression('!==', t.identifier('_result'), t.identifier('undefined')), t.expressionStatement(t.callExpression(t.memberExpression(t.identifier('env'), t.identifier('value_return')), [t.callExpression(t.memberExpression(classId, t.identifier('_serialize')), [t.identifier('_result')])]))),
             ]))));
             console.log(`Babel ${method} method export done`);
           }