diff --git a/examples/nodejs/README.md b/examples/nodejs/README.md
index b8852735..2b4115d9 100644
--- a/examples/nodejs/README.md
+++ b/examples/nodejs/README.md
@@ -1,9 +1,9 @@
 # GreenField JS SDK Node.js
 
-* [storage](./storage.js)
+> NOTICE: Before running, you need to fill your account's private key and address in [env.js](./env.js).
 
 ```bash
-> node storage
+> node storage.js
 ```
 
 [More examples](../../packages/chain-sdk/tests/)
diff --git a/examples/nodejs/env.js b/examples/nodejs/env.js
new file mode 100644
index 00000000..31f594d8
--- /dev/null
+++ b/examples/nodejs/env.js
@@ -0,0 +1,7 @@
+const ACCOUNT_ADDRESS = '0x1C893441AB6c1A75E01887087ea508bE8e07AAae';
+const ACCOUNT_PRIVATEKEY = '0x6547492644d0136f76ef65e3bd04a77d079ed38028f747700c6c6063564d7032';
+
+module.exports = {
+  ACCOUNT_ADDRESS,
+  ACCOUNT_PRIVATEKEY,
+};
diff --git a/examples/nodejs/storage.js b/examples/nodejs/storage.js
index ec2e88e8..3204f195 100644
--- a/examples/nodejs/storage.js
+++ b/examples/nodejs/storage.js
@@ -1,10 +1,5 @@
-const {
-  client,
-  selectSp,
-  ACCOUNT_ADDRESS,
-  ACCOUNT_PRIVATEKEY,
-  generateString,
-} = require('./client');
+const { client, selectSp, generateString } = require('./client');
+const { ACCOUNT_ADDRESS, ACCOUNT_PRIVATEKEY } = require('./env');
 
 (async () => {
   const bucketName = generateString(10);