diff --git a/examples/json_schema.py b/examples/json_schema.py
new file mode 100755
index 00000000..b1b8c179
--- /dev/null
+++ b/examples/json_schema.py
@@ -0,0 +1,23 @@
+#!/usr/bin/env python
+import json
+import sys
+
+from robotpy_build.config.autowrap_yml import AutowrapConfigYaml
+
+schema = AutowrapConfigYaml.schema()
+nullable_types = (
+    "PropData",
+    "ClassData",
+    "EnumData",
+    "FunctionData",
+)
+
+for name, definition in schema["definitions"].items():
+    if (
+        name in nullable_types
+        and definition["type"] == "object"
+        and "default" not in definition
+    ):
+        definition["type"] = ["object", "null"]
+
+json.dump(schema, sys.stdout, indent="\t")