diff --git a/playground/dan/pizza-palace/pizza-order-exampledata.json b/playground/dan/pizza-palace/pizza-order-exampledata.json
index 4d26f242..e6f9c364 100644
--- a/playground/dan/pizza-palace/pizza-order-exampledata.json
+++ b/playground/dan/pizza-palace/pizza-order-exampledata.json
@@ -1,6 +1,6 @@
 {
   "multipleChoicesList": [],
-  "+size": [
+  "pizza_size": [
     {
       "value": "apples",
       "label": "Apples"