diff --git a/playground/nutech/issue2/decisionbuttons-uischema.json b/playground/nutech/issue2/decisionbuttons-uischema.json
index 558f0acd..23a9214e 100644
--- a/playground/nutech/issue2/decisionbuttons-uischema.json
+++ b/playground/nutech/issue2/decisionbuttons-uischema.json
@@ -1,15 +1,26 @@
 {
   "type": "object",
   "properties": {
-    "approve": {
-      "type": "buttons",
-      "title": "Approve",
-      "propertyOrder": 1
-    },
-    "reject": {
-      "type": "string",
-      "title": "Reject",
-      "propertyOrder": 2
+    "buttons": {
+      "type": "array",
+      "items": {
+        "type": "object",
+        "properties": {
+          "type": {
+            "type": "string",
+            "enum": ["button"]
+          },
+          "title": {
+            "type": "string"
+          },
+          "propertyOrder": {
+            "type": "integer"
+          }
+        },
+        "required": ["type", "title", "propertyOrder"]
+      }
     }
+  },
+  "required": ["buttons"]
   }
 }