diff --git a/src/widgets/dialogs/qmessagebox.cpp b/src/widgets/dialogs/qmessagebox.cpp
index bb71a2370e4..5d0c84e9d49 100644
--- a/src/widgets/dialogs/qmessagebox.cpp
+++ b/src/widgets/dialogs/qmessagebox.cpp
@@ -2824,6 +2824,14 @@ bool QMessageBoxPrivate::canBeNativeDialog() const
     if (strcmp(QMessageBox::staticMetaObject.className(), q->metaObject()->className()) != 0)
         return false;
 
+    for (auto *customButton : customButtonList) {
+        if (QPushButton *pushButton = qobject_cast<QPushButton *>(customButton)) {
+            // We can't support buttons with menus in native dialogs (yet)
+            if (pushButton->menu())
+                return false;
+        }
+    }
+
     return QDialogPrivate::canBeNativeDialog();
 }