diff --git a/source/guide/index.md b/source/guide/index.md
index f35bbf8b6b..906db41fb4 100644
--- a/source/guide/index.md
+++ b/source/guide/index.md
@@ -34,7 +34,7 @@ var exampleData = {
 // which links the View and the Model
 var exampleVM = new Vue({
   el: '#example-1',
-  data: data
+  data: exampleData
 })
 ```