diff --git a/src/calibre/ebooks/unihandecode/__init__.py b/src/calibre/ebooks/unihandecode/__init__.py
index 618567bbbf..be091634b4 100644
--- a/src/calibre/ebooks/unihandecode/__init__.py
+++ b/src/calibre/ebooks/unihandecode/__init__.py
@@ -9,7 +9,9 @@ __all__ = ["Unihandecoder"]
 Decode unicode text to an ASCII representation of the text.
 Translate unicode characters to ASCII.
 
-inspired from John's unidecode library.
+Inspired from John Schember's unidecode library which was created as part
+of calibre.
+
 Copyright(c) 2009, John Schember
 
 Tranliterate the string from unicode characters to ASCII in Chinese and others.
diff --git a/src/calibre/ebooks/unihandecode/unidecoder.py b/src/calibre/ebooks/unihandecode/unidecoder.py
index 0008ef824c..1cbe6682c1 100644
--- a/src/calibre/ebooks/unihandecode/unidecoder.py
+++ b/src/calibre/ebooks/unihandecode/unidecoder.py
@@ -8,9 +8,10 @@ __docformat__ = 'restructuredtext en'
 Decode unicode text to an ASCII representation of the text in Chinese.
 Transliterate unicode characters to ASCII based on chinese pronounce.
 
-derived from John's unidecode library.
+Derived from John Schember's unidecode library. Which was created
+as part of calibre.
 
-Copyright(c) 2009, John Schember
+Copyright(c) 2009, John Schember <john@nachtimwald.com>
 
 Based on the ruby unidecode gem (http://rubyforge.org/projects/unidecode/) which
 is based on the perl module Text::Unidecode