diff --git a/index.d.ts b/index.d.ts
index 9bbe074..73e371a 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -215,6 +215,8 @@ declare namespace WAWebJS {
     takeoverOnConflict?: boolean,
     /** @default 0 */
     takeoverTimeoutMs?: number,
+    /** @default 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36' */
+    userAgent?: string
   }
 
   /** Represents a Whatsapp client session */
diff --git a/src/Client.js b/src/Client.js
index c240a30..1d06720 100644
--- a/src/Client.js
+++ b/src/Client.js
@@ -7,7 +7,7 @@ const jsQR = require('jsqr');
 
 const Util = require('./util/Util');
 const InterfaceController = require('./util/InterfaceController');
-const { WhatsWebURL, UserAgent, DefaultOptions, Events, WAState } = require('./util/Constants');
+const { WhatsWebURL, DefaultOptions, Events, WAState } = require('./util/Constants');
 const { ExposeStore, LoadUtils } = require('./util/Injected');
 const ChatFactory = require('./factories/ChatFactory');
 const ContactFactory = require('./factories/ContactFactory');
@@ -48,7 +48,7 @@ class Client extends EventEmitter {
     async initialize() {
         const browser = await puppeteer.launch(this.options.puppeteer);
         const page = (await browser.pages())[0];
-        page.setUserAgent(UserAgent);
+        page.setUserAgent(this.options.userAgent);
 
         this.pupBrowser = browser;
         this.pupPage = page;
diff --git a/src/util/Constants.js b/src/util/Constants.js
index 611157c..2534c58 100644
--- a/src/util/Constants.js
+++ b/src/util/Constants.js
@@ -2,8 +2,6 @@
 
 exports.WhatsWebURL = 'https://web.whatsapp.com/';
 
-exports.UserAgent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36';
-
 exports.DefaultOptions = {
     puppeteer: {
         headless: true,
@@ -14,7 +12,8 @@ exports.DefaultOptions = {
     qrRefreshIntervalMs: 20000,
     authTimeoutMs: 45000,
     takeoverOnConflict: false,
-    takeoverTimeoutMs: 0
+    takeoverTimeoutMs: 0,
+    userAgent: 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.109 Safari/537.36'
 };
 
 /**