diff --git a/playground/myome/pizza-kingdom-silvia/payment-form-schema.json b/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
index 7af89a23..66fecbe8 100644
--- a/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
+++ b/playground/myome/pizza-kingdom-silvia/payment-form-schema.json
@@ -5,8 +5,6 @@
   "properties": {
     "payment_type": {
       "type": "string",
-
-        "type": "string",
         "enum": [
           "cash",
           "credit"