diff --git a/source/guest/index.js b/source/guest/index.js
index d154b99..97d1b4e 100644
--- a/source/guest/index.js
+++ b/source/guest/index.js
@@ -3,7 +3,7 @@ const getId = require('../getId');
 const prefix = 'sessionAccessId-';
 
 function createId() {
-    return prefix + Date.now();
+    return prefix + (Math.random() * Date.now());
 }
 
 module.exports = function storageGuest(source, parent) {