diff --git a/kcmkwin/kwintabbox/main.h b/kcmkwin/kwintabbox/main.h
index db2d152cb..249ccae39 100644
--- a/kcmkwin/kwintabbox/main.h
+++ b/kcmkwin/kwintabbox/main.h
@@ -1,100 +1,99 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2009 Martin Gräßlin <kde@martin-graesslin.com>
 
 This program is free software; you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
 the Free Software Foundation; either version 2 of the License, or
 (at your option) any later version.
 
 This program 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 General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *********************************************************************/
 
 #ifndef __MAIN_H__
 #define __MAIN_H__
 
 #include <kcmodule.h>
 #include <ksharedconfig.h>
 #include "tabboxconfig.h"
 
 #include "ui_main.h"
 
 class KShortcutsEditor;
 class KActionCollection;
-class QShowEvent;
 
 namespace KWin
 {
 namespace TabBox {
 
 class LayoutConfig;
 }
 
 
 
 class KWinTabBoxConfigForm : public QWidget, public Ui::KWinTabBoxConfigForm
     {
     Q_OBJECT
 
     public:
         explicit KWinTabBoxConfigForm( QWidget* parent );
     };
 
 class KWinTabBoxConfig : public KCModule
     {
     Q_OBJECT
 
     public:
         explicit KWinTabBoxConfig( QWidget* parent, const QVariantList& args );
         ~KWinTabBoxConfig();
 
     public slots:
         virtual void save();
         virtual void load();
         virtual void defaults();
 
     private slots:
         void slotEffectSelectionChanged( int index );
         void slotAboutEffectClicked();
         void slotConfigureEffectClicked();
         void slotConfigureLayoutClicked();
         void slotLayoutChanged();
         void slotEffectSelectionChangedAlternative( int index );
         void slotAboutEffectClickedAlternative();
         void slotConfigureEffectClickedAlternative();
         void slotConfigureLayoutClickedAlternative();
         void slotLayoutChangedAlternative();
 
     private:
         void updateUiFromConfig( KWinTabBoxConfigForm* ui, const TabBox::TabBoxConfig& config );
         void updateConfigFromUi( const KWinTabBoxConfigForm* ui, TabBox::TabBoxConfig& config );
         void loadConfig( const KConfigGroup& config, KWin::TabBox::TabBoxConfig& tabBoxConfig );
         void saveConfig( KConfigGroup& config, const KWin::TabBox::TabBoxConfig& tabBoxConfig );
         void effectSelectionChanged( KWinTabBoxConfigForm* ui, int index );
         void aboutEffectClicked( KWinTabBoxConfigForm* ui );
         void configureEffectClicked( KWinTabBoxConfigForm* ui );
 
     private:
         KWinTabBoxConfigForm* m_primaryTabBoxUi;
         KWinTabBoxConfigForm* m_alternativeTabBoxUi;
         KSharedConfigPtr m_config;
         KActionCollection* m_actionCollection;
         KShortcutsEditor* m_editor;
         TabBox::TabBoxConfig m_tabBoxConfig;
         TabBox::TabBoxConfig m_tabBoxAlternativeConfig;
         TabBox::LayoutConfig* m_configForm;
 
         bool effectEnabled( const QString& effect, const KConfigGroup& cfg ) const;
     };
 
 } // namespace
 
 #endif