diff --git a/vue/vue-tests.ts b/vue/vue-tests.ts
index 41ed38a2d..360625f05 100644
--- a/vue/vue-tests.ts
+++ b/vue/vue-tests.ts
@@ -226,7 +226,7 @@ namespace TestExplicitExtend {
             propA: Object,
             propB: {
                 type: Application,
-                default: () => null,
+                default: () => new Application(),
                 twoWay: true,
                 coerce(value: any) {}
             }