diff --git a/libavformat/rtmpcrypt.c b/libavformat/rtmpcrypt.c
index 6a4332de86..23125459b5 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 8ddc5fcee8..92bce7a0bc 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.