diff --git a/dist/puppeteer-browser-ready.d.ts b/dist/puppeteer-browser-ready.d.ts
index 3e35927..68b4ada 100644
--- a/dist/puppeteer-browser-ready.d.ts
+++ b/dist/puppeteer-browser-ready.d.ts
@@ -1,4 +1,4 @@
-//! puppeteer-browser-ready v1.3.0 ~~ https://github.com/center-key/puppeteer-browser-ready ~~ MIT License
+//! puppeteer-browser-ready v1.3.1 ~~ https://github.com/center-key/puppeteer-browser-ready ~~ MIT License
 
 import { Browser, HTTPResponse, Page } from 'puppeteer';
 import { HTMLElement } from 'node-html-parser';
diff --git a/dist/puppeteer-browser-ready.js b/dist/puppeteer-browser-ready.js
index a9a428c..6b43e7b 100644
--- a/dist/puppeteer-browser-ready.js
+++ b/dist/puppeteer-browser-ready.js
@@ -1,4 +1,4 @@
-//! puppeteer-browser-ready v1.3.0 ~~ https://github.com/center-key/puppeteer-browser-ready ~~ MIT License
+//! puppeteer-browser-ready v1.3.1 ~~ https://github.com/center-key/puppeteer-browser-ready ~~ MIT License
 
 import { parse } from 'node-html-parser';
 import express from 'express';
@@ -46,7 +46,7 @@ const browserReady = {
         const settings = { ...defaults, ...options };
         const log = (label, msg) => settings.verbose &&
             console.log('   ', Date.now() % 100000, label + ':', msg);
-        const rootInfo = (root) => root.constructor.name + '/' + root.firstChild.toString();
+        const rootInfo = (root) => root.constructor.name + '/' + root.firstChild?.toString();
         const web = async (browser) => {
             log('Connected', browser.isConnected());
             try {
diff --git a/package.json b/package.json
index 6755fc1..a764be6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
    "name": "puppeteer-browser-ready",
-   "version": "1.3.0",
+   "version": "1.3.1",
    "description": "Simple utility to go to a URL and wait for the HTTP response",
    "license": "MIT",
    "type": "module",