diff --git a/debian/copyright b/debian/copyright
index 70fef03..6cad728 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -3,12 +3,32 @@ Upstream-Name: lximage-qt
 Source: https://github.com/lxde/lximage-qt
 
 Files: *
-Copyright: 2013-2015 Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
-License: GPL-2.0 and LGPL-2.1+
+Copyright: Copyright (c) 2013-2014 LXQt team
+License: GPL-2 and LGPL-2.1+
+
+Files: src/application.*
+       src/loadimagejob.*
+       src/mainwindow.*
+       src/modelfilter.*
+       src/preferencesdialog.*
+       src/saveimagejob.*
+       src/settings.*
+Copyright: Copyright (C) 2013 - 2014  Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
+License: GPL-2.0+
+
+Files: src/imageview.*
+Copyright: Copyright (C) 2013
+License: GPL-2.0+
+
+Files: src/job.*
+       src/screenshotdialog.*
+Copyright: Copyright (C) 2013 - 2014
+License: LGPL-2.1+
 
 Files: debian/*
 Copyright: 2014-2015 Alf Gaida <agaida@siduction.org>
            2015      Andrew Lee (李健秋) <ajqlee@debian.org>
+           2015      ChangZhuo Chen (陳昌倬) <czchen@debian.org>
 License: LGPL-2.1+
 
 License: LGPL-2.1+