diff --git a/core/dplugins/dimg/jpeg2000/dimgjpeg2000loader.cpp b/core/dplugins/dimg/jpeg2000/dimgjpeg2000loader.cpp
index b576c8b112..57d3fa1584 100644
--- a/core/dplugins/dimg/jpeg2000/dimgjpeg2000loader.cpp
+++ b/core/dplugins/dimg/jpeg2000/dimgjpeg2000loader.cpp
@@ -1,91 +1,59 @@
 /* ============================================================
  *
  * This file is a part of digiKam project
  * https://www.digikam.org
  *
  * Date        : 2006-06-14
  * Description : A JPEG-2000 IO file for DImg framework
  *
  * Copyright (C) 2006-2019 by Gilles Caulier <caulier dot gilles at gmail dot 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, 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.
  *
  * ============================================================ */
 
 #include "dimgjpeg2000loader.h"
 
-// Qt includes
-
-#include <QFile>
-#include <QByteArray>
-#include <QTextStream>
-
 // Local includes
 
-#include "digikam_config.h"
-#include "dimg.h"
 #include "digikam_debug.h"
-#include "dimgloaderobserver.h"
-#include "dmetadata.h"
-
-// Jasper includes
-
-#ifndef Q_CC_MSVC
-extern "C"
-{
-#endif
-
-#if defined(Q_OS_DARWIN) && defined(Q_CC_CLANG)
-#   pragma clang diagnostic push
-#   pragma clang diagnostic ignored "-Wshift-negative-value"
-#endif
-
-#include <jasper/jasper.h>
-
-#if defined(Q_OS_DARWIN) && defined(Q_CC_CLANG)
-#   pragma clang diagnostic pop
-#endif
-
-#ifndef Q_CC_MSVC
-}
-#endif
 
 namespace DigikamJPEG2000DImgPlugin
 {
 
 DImgJPEG2000Loader::DImgJPEG2000Loader(DImg* const image)
     : DImgLoader(image)
 {
     m_hasAlpha   = false;
     m_sixteenBit = false;
 }
 
 DImgJPEG2000Loader::~DImgJPEG2000Loader()
 {
 }
 
 bool DImgJPEG2000Loader::hasAlpha() const
 {
     return m_hasAlpha;
 }
 
 bool DImgJPEG2000Loader::sixteenBit() const
 {
     return m_sixteenBit;
 }
 
 bool DImgJPEG2000Loader::isReadOnly() const
 {
     return false;
 }
 
 } // namespace DigikamJPEG2000DImgPlugin