diff --git a/examples/2-in-depth/2-4-messages/waiter/order-schema.json b/examples/2-in-depth/2-4-messages/waiter/order-schema.json
index 8efd4969..890e202c 100644
--- a/examples/2-in-depth/2-4-messages/waiter/order-schema.json
+++ b/examples/2-in-depth/2-4-messages/waiter/order-schema.json
@@ -1,5 +1,6 @@
 {
   "type": "object",
+  "p"
   "order": {  
     "type": "object",
     "properties": {