diff --git a/examples/log-to-files.js b/examples/log-to-files.js
index 6f140da..c30ccc5 100644
--- a/examples/log-to-files.js
+++ b/examples/log-to-files.js
@@ -1,36 +1,37 @@
-"use strict";
-var path = require('path')
-, log4js = require('../lib/log4js');
+const log4js = require('../lib/log4js');
 
 log4js.configure(
   {
-    appenders: [
-      {
-        type: "file",
-        filename: "important-things.log",
-        maxLogSize: 10*1024*1024, // = 10Mb
+    appenders: {
+      file: {
+        type: 'file',
+        filename: 'important-things.log',
+        maxLogSize: 10 * 1024 * 1024, // = 10Mb
         numBackups: 5, // keep five backup files
         compress: true, // compress the backups
         encoding: 'utf-8',
-        mode: parseInt('0640', 8),
+        mode: 0o0640,
         flags: 'w+'
       },
-      {
-        type: "dateFile",
-        filename: "more-important-things.log",
-        pattern: "yyyy-MM-dd-hh",
+      dateFile: {
+        type: 'dateFile',
+        filename: 'more-important-things.log',
+        pattern: 'yyyy-MM-dd-hh',
         compress: true
       },
-      {
-        type: "stdout"
+      out: {
+        type: 'stdout'
       }
-    ]
+    },
+    categories: {
+      default: { appenders: ['file', 'dateFile', 'out'], level: 'trace' }
+    }
   }
 );
 
-var logger = log4js.getLogger('things');
-logger.debug("This little thing went to market");
-logger.info("This little thing stayed at home");
-logger.error("This little thing had roast beef");
-logger.fatal("This little thing had none");
-logger.trace("and this little thing went wee, wee, wee, all the way home.");
+const logger = log4js.getLogger('things');
+logger.debug('This little thing went to market');
+logger.info('This little thing stayed at home');
+logger.error('This little thing had roast beef');
+logger.fatal('This little thing had none');
+logger.trace('and this little thing went wee, wee, wee, all the way home.');