diff --git a/keyboard_repeat.h b/keyboard_repeat.h
index 6e9156ead..7a367c2bd 100644
--- a/keyboard_repeat.h
+++ b/keyboard_repeat.h
@@ -1,56 +1,56 @@
 /********************************************************************
  KWin - the KDE window manager
  This file is part of the KDE project.
 
 Copyright (C) 2016, 2017 Martin Gräßlin <mgraesslin@kde.org>
 
 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 KWIN_KEYBOARD_REPEAT
 #define KWIN_KEYBOARD_REPEAT
 
 #include "input_event_spy.h"
 
 #include <QObject>
 
 class QTimer;
 
 namespace KWin
 {
 class Xkb;
 
 class KeyboardRepeat : public QObject, public InputEventSpy
 {
     Q_OBJECT
 public:
     explicit KeyboardRepeat(Xkb *xkb);
     ~KeyboardRepeat() override;
 
     void keyEvent(KeyEvent *event) override;
 
 Q_SIGNALS:
     void keyRepeat(quint32 key, quint32 time);
 
 private:
     void handleKeyRepeat();
     QTimer *m_timer;
     Xkb *m_xkb;
     quint32 m_time;
-    quint32 m_key;
+    quint32 m_key = 0;
 };
 
 
 }
 
 #endif