diff --git a/playground/dan/webinar/1-approval-two-eyes/request-uischema.json b/playground/dan/webinar/1-approval-two-eyes/request-uischema.json
index 2af73433..aab12eab 100644
--- a/playground/dan/webinar/1-approval-two-eyes/request-uischema.json
+++ b/playground/dan/webinar/1-approval-two-eyes/request-uischema.json
@@ -2,7 +2,7 @@
   "description": {
     "ui:widget": "textarea"
   },
-  "start_date": {
+  "start": {
     "ui:widget": "date",
     "ui:help": "Specify the preferred delivery date for this service/product"
   }