1 files changed, 1 insertions, 1 deletions
diff --git a/src/widgets/dialogs/qdialog_p.h b/src/widgets/dialogs/qdialog_p.h
index 878049557a..1d06c116fb 100644
--- a/src/widgets/dialogs/qdialog_p.h
+++ b/src/widgets/dialogs/qdialog_p.h
@@ -103,7 +103,7 @@ template <typename T>
 class QAutoPointer {
     QPointer<T> o;
 public:
-    explicit QAutoPointer(T *t) noexcept : o(t) {}
+    Q_NODISCARD_CTOR explicit QAutoPointer(T *t) noexcept : o(t) {}
     ~QAutoPointer() { delete o; }
 
     T *operator->() const noexcept { return get(); }