diff --git a/examples/contactapp/applicationlogic.nim b/examples/contactapp/applicationlogic.nim
index 06e908b..2657a9d 100644
--- a/examples/contactapp/applicationlogic.nim
+++ b/examples/contactapp/applicationlogic.nim
@@ -13,7 +13,7 @@ QtObject:
     self.QObject.setup
 
   proc newApplicationLogic*(app: QApplication): ApplicationLogic =
-    new(result)
+    new(result, delete)
     result.contactList = newContactList()
     result.app = app
     result.setup()
diff --git a/examples/contactapp/contact.nim b/examples/contactapp/contact.nim
index ac2886b..b66eaa6 100644
--- a/examples/contactapp/contact.nim
+++ b/examples/contactapp/contact.nim
@@ -12,7 +12,7 @@ QtObject:
     self.QObject.setup
 
   proc newContact*(): Contact =
-    new(result)
+    new(result, delete)
     result.name = ""
     result.setup