diff --git a/packages/core/src/generators/uischema.ts b/packages/core/src/generators/uischema.ts
index 10dea9fbc4..ce540a397e 100644
--- a/packages/core/src/generators/uischema.ts
+++ b/packages/core/src/generators/uischema.ts
@@ -191,6 +191,8 @@ const generateUISchema = (
     /* falls through */
     case 'integer':
     /* falls through */
+    case 'null':
+    /* falls through */
     case 'boolean': {
       const controlObject: ControlElement = createControlElement(currentRef);
       schemaElements.push(controlObject);