diff --git a/playground/myome/pizza-kingdom-silvia/payment-form-schema.json b/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
index d773d4b9..a88e410f 100644
--- a/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
+++ b/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
@@ -6,7 +6,6 @@
     "payment_type": {
       "type": "string",
       
-      "items": {
         "type": "string",
         "enum": [
           "cash",