diff --git a/src/plugins/qmldesigner/utils/filedownloader.h b/src/plugins/qmldesigner/utils/filedownloader.h
index b1202e57cb8..4ecb6b49671 100644
--- a/src/plugins/qmldesigner/utils/filedownloader.h
+++ b/src/plugins/qmldesigner/utils/filedownloader.h
@@ -2,6 +2,7 @@
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
 #pragma once
 
+#include <QDateTime>
 #include <QFile>
 #include <QNetworkReply>
 #include <QObject>