diff --git a/README.md b/README.md
index f4171be..c9142b1 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 ### Import sms module
 
 ```js
-const sms = require('ushio-sms').sms(API_url); //substitute the API_url
+const sms = require('ushio-sms')(API_url); //substitute the API_url
 
 ```
 
@@ -17,4 +17,4 @@ await sms.send(Tel, Msg0, Msg1);
 
 ## License
 
-Apache-2.0
\ No newline at end of file
+Apache-2.0
diff --git a/index.js b/index.js
index 5b3bf91..82c18e2 100644
--- a/index.js
+++ b/index.js
@@ -21,5 +21,5 @@ var sms = (url) => {
 }
 
 
-exports.sms = sms;
+module.exports = sms;
 
diff --git a/package.json b/package.json
index f6c261b..5973ce3 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ushio-sms",
-  "version": "1.0.0",
+  "version": "1.0.2",
   "description": "sms for ushio",
   "main": "index.js",
   "scripts": {
diff --git a/test.js b/test.js
index 8c24969..626389a 100644
--- a/test.js
+++ b/test.js
@@ -1,5 +1,5 @@
-const sms = require('./index.js').sms('https://api.yimian.xyz/sms/');
+const sms = require('./index.js')('https://api.yimian.xyz/sms/');
 
 (async () => {
 	console.log(await sms.send('18118155257', 'test', 'send'));
-})();
\ No newline at end of file
+})();