diff --git a/libavformat/spdifenc.c b/libavformat/spdifenc.c
index d362f82a09..6cb1820f1d 100644
--- a/libavformat/spdifenc.c
+++ b/libavformat/spdifenc.c
@@ -1,6 +1,8 @@
 /*
  * IEC958 muxer
  * Copyright (c) 2009 Bartlomiej Wolowiec
+ * Copyright (c) 2010 Anssi Hannula
+ * Copyright (c) 2010 Carl Eugen Hoyos
  *
  * This file is part of FFmpeg.
  *