diff --git a/packages/catalog-model/src/kinds/SystemEntityV1alpha1.test.ts b/packages/catalog-model/src/kinds/SystemEntityV1alpha1.test.ts
index 915f455e79..6ea295f190 100644
--- a/packages/catalog-model/src/kinds/SystemEntityV1alpha1.test.ts
+++ b/packages/catalog-model/src/kinds/SystemEntityV1alpha1.test.ts
@@ -95,4 +95,9 @@ describe('SystemV1alpha1Validator', () => {
     (entity as any).spec.type = '';
     await expect(validator.check(entity)).rejects.toThrow(/type/);
   });
+
+  it('rejects wrong type', async () => {
+    (entity as any).spec.type = 7;
+    await expect(validator.check(entity)).rejects.toThrow(/type/);
+  });
 });