diff --git a/docs/user-explorer.md b/docs/user-explorer.md
index ca88846..73684f8 100644
--- a/docs/user-explorer.md
+++ b/docs/user-explorer.md
@@ -5,9 +5,10 @@ Add the `userId` on first load just passing it in the options object
 ```js
 Vue.use(VueAnalytics, {
   id: 'UA-XXX-X',
-  userId: 'xxx'
+  fields: {
+    userId: 'xxx'
+  }
 })
 ```
 
 **it is also possible to set the **`userId`** in runtime using the **[**set**](/set.md)** method**
-