diff --git a/kcm_hotkeys/hotkeys_tree_view.h b/kcm_hotkeys/hotkeys_tree_view.h
index 0e01aab..65666b5 100644
--- a/kcm_hotkeys/hotkeys_tree_view.h
+++ b/kcm_hotkeys/hotkeys_tree_view.h
@@ -1,75 +1,74 @@
 /*
    Copyright (C) 2008 Michael Jansen <kde@michael-jansen.biz>
 
    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 HOTKEYS_TREE_VIEW_H
 #define HOTKEYS_TREE_VIEW_H
 
 #include "libkhotkeysfwd.h"
 
 #include "triggers/triggers.h"
 #include "actions/actions.h"
 
 #include <QMenu>
 #include <QTreeView>
 
 
-class QSignalMapper;
 
 class KHotkeysModel;
 
 /**
  * @author Michael Jansen <kde@michael-jansen.biz>
  */
 class HotkeysTreeView : public QTreeView
     {
     Q_OBJECT
 
 public:
 
     /**
      * Default constructor
      */
     HotkeysTreeView( QWidget *parent = nullptr );
 
     /**
      * Destructor
      */
     virtual ~HotkeysTreeView();
 
     /**
      * The user requested a context menu
      */
     void contextMenuEvent( QContextMenuEvent *event ) Q_DECL_OVERRIDE;
 
     /**
      * Set a new model
      */
     void setModel( QAbstractItemModel *model ) Q_DECL_OVERRIDE;
     KHotkeysModel *model();
 
 protected:
     void mouseReleaseEvent(QMouseEvent *me) Q_DECL_OVERRIDE;
 
 private Q_SLOTS:
 
     void modelReset();
 
 };
 
 
 #endif /* #ifndef HOTKEYS_TREE_VIEW_H */