diff --git a/kdecore/config/kconfigbase.h b/kdecore/config/kconfigbase.h
index 2e79f322..0cce7a1b 100644
--- a/kdecore/config/kconfigbase.h
+++ b/kdecore/config/kconfigbase.h
@@ -28,9 +28,7 @@
 
 #include <QtCore/qstringlist.h>
 
-class QStringList;
 class KConfigGroup;
-class KConfigBasePrivate;
 
 /**
  * \class KConfigBase kconfigbase.h <KConfigBase>
diff --git a/kdecore/config/kconfigbase_p.h b/kdecore/config/kconfigbase_p.h
deleted file mode 100644
index 2a58b350..00000000
--- a/kdecore/config/kconfigbase_p.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
-   This file is part of the KDE libraries
-   Copyright (c) 1999 Preston Brown <pbrown@kde.org>
-   Copyright (C) 1997 Matthias Kalle Dalheimer <kalle@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 KCONFIGBASE_P_H
-#define KCONFIGBASE_P_H
-
-#include <QtCore/qshareddata.h>
-
-class KConfigBasePrivate : public QSharedData
-{
-};
-#endif