diff --git a/debian/changelog b/debian/changelog
index fcb510b..75c563d 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -15,6 +15,7 @@
     are available.
   * Fix typo: suppored/supported (typo-fix-suppored.patch).
   * Update man page to document new/changed options.
+  * Update debian/copyright for included dsd2pcm source.
 
  -- Chris Boot <debian@bootc.net>  Sat, 28 Dec 2013 22:31:23 +0000
 
diff --git a/debian/copyright b/debian/copyright
index d3461b9..d5e5efb 100644
--- a/debian/copyright
+++ b/debian/copyright
@@ -22,6 +22,35 @@
  On Debian systems, the complete text of the GNU General
  Public License version 3 can be found in "/usr/share/common-licenses/GPL-3".
 
+Files: dsd2pcm/*
+Copyright: 2009, 2011 Sebastian Gesemann
+           2013 Adrian Smith <triode1@btinternet.com>
+License: BSD 2-Clause
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions
+ are met:
+ 1. Redistributions of source code must retain the above copyright
+    notice, this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright
+    notice, this list of conditions and the following disclaimer in the
+    documentation and/or other materials provided with the distribution.
+ .
+ THIS SOFTWARE IS PROVIDED BY SEBASTIAN GESEMANN ''AS IS'' AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ ARE DISCLAIMED. IN NO EVENT SHALL SEBASTIAN GESEMANN OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ SUCH DAMAGE.
+ .
+ The views and conclusions contained in the software and documentation are
+ those of the authors and should not be interpreted as representing official
+ policies, either expressed or implied, of Sebastian Gesemann.
+
 Files: debian/*
 Copyright: 2013 Chris Boot <debian@bootc.net>
 License: GPL-2+