diff --git a/messageviewer/src/dkim-verify/dkimconfiguretabwidget.h b/messageviewer/src/dkim-verify/dkimconfiguretabwidget.h
index 7ce5c978..e600b384 100644
--- a/messageviewer/src/dkim-verify/dkimconfiguretabwidget.h
+++ b/messageviewer/src/dkim-verify/dkimconfiguretabwidget.h
@@ -1,43 +1,42 @@
 /*
    Copyright (C) 2018-2019 Laurent Montel <montel@kde.org>
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #ifndef DKIMCONFIGURETABWIDGET_H
 #define DKIMCONFIGURETABWIDGET_H
 
 #include "messageviewer_private_export.h"
 
 #include <QWidget>
-class QTabWidget;
 namespace MessageViewer {
 class MESSAGEVIEWER_TESTS_EXPORT DKIMConfigureTabWidget : public QWidget
 {
     Q_OBJECT
 public:
     explicit DKIMConfigureTabWidget(QWidget *parent = nullptr);
     ~DKIMConfigureTabWidget();
 
     void loadSettings();
     void saveSettings();
     void resetSettings();
 private:
     void init();
 };
 }
 
 #endif // DKIMCONFIGURETABWIDGET_H