diff --git a/example/scratchpad/bundle.js b/example/scratchpad/bundle.js
index 141e2367b7..cedec6d580 100644
--- a/example/scratchpad/bundle.js
+++ b/example/scratchpad/bundle.js
@@ -33,6 +33,11 @@ define([
     legacyRegistry.register("example/scratchpad", {
         "extensions": {
             "roots": [
+                {
+                    "id": "scratch:root"
+                }
+            ],
+            "models": [
                 {
                     "id": "scratch:root",
                     "model": {