diff --git a/libavformat/rtmpcrypt.c b/libavformat/rtmpcrypt.c
index 6a4332de865845e4b05146a65a6a8b45596a7685..23125459b55d58eed2874760472b4f626aa7052d 100644
--- a/libavformat/rtmpcrypt.c
+++ b/libavformat/rtmpcrypt.c
@@ -1,5 +1,7 @@
 /*
  * RTMPE network protocol
+ * Copyright (c) 2008-2009 Andrej Stepanchuk
+ * Copyright (c) 2009-2010 Howard Chu
  * Copyright (c) 2012 Samuel Pitoiset
  *
  * This file is part of Libav.
diff --git a/libavformat/rtmpdh.c b/libavformat/rtmpdh.c
index 8ddc5fcee8b0c6231d5dac9093391ef4b07f6c26..92bce7a0bc8876521f36e033d125a5465b1711ee 100644
--- a/libavformat/rtmpdh.c
+++ b/libavformat/rtmpdh.c
@@ -1,5 +1,7 @@
 /*
  * RTMP Diffie-Hellmann utilities
+ * Copyright (c) 2009 Andrej Stepanchuk
+ * Copyright (c) 2009-2010 Howard Chu
  * Copyright (c) 2012 Samuel Pitoiset
  *
  * This file is part of Libav.