diff --git a/libavcodec/j2k.c b/libavcodec/j2k.c
index f5ee97085a..51ba78862e 100644
--- a/libavcodec/j2k.c
+++ b/libavcodec/j2k.c
@@ -1,6 +1,7 @@
 /*
  * JPEG2000 encoder and decoder common functions
  * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
  *
  * This file is part of FFmpeg.
  *
diff --git a/libavcodec/j2k.h b/libavcodec/j2k.h
index 2c94d05ebe..85213aa64d 100644
--- a/libavcodec/j2k.h
+++ b/libavcodec/j2k.h
@@ -1,6 +1,7 @@
 /*
- * JPEG2000 tables
+ * JPEG 2000 common defines, structures and functions
  * Copyright (c) 2007 Kamil Nowosad
+ * Copyright (c) 2013 Nicolas Bertrand <nicoinattendu@gmail.com>
  *
  * This file is part of FFmpeg.
  *