diff --git a/src/corelib/kernel/qproperty.h b/src/corelib/kernel/qproperty.h
index ab93cdccc6..88745d6cde 100644
--- a/src/corelib/kernel/qproperty.h
+++ b/src/corelib/kernel/qproperty.h
@@ -268,7 +268,7 @@ private:
 };
 
 template <typename Functor>
-class QPropertyChangeHandler : public QPropertyObserver
+class [[nodiscard]] QPropertyChangeHandler : public QPropertyObserver
 {
     Functor m_handler;
 public: