diff --git a/playground/dan/gateways/is-rain-schema.json b/playground/dan/gateways/is-rain-schema.json
index cf5b21f1..7bf489b6 100644
--- a/playground/dan/gateways/is-rain-schema.json
+++ b/playground/dan/gateways/is-rain-schema.json
@@ -9,7 +9,7 @@
       "oneOf": [
         {
         "title" : "Yes",
-        "const"
+        "const" : ""
         }
       ]
     }