diff --git a/libavcodec/x86/dsputil.asm b/libavcodec/x86/dsputil.asm
index 02bec2d516..f5df52112a 100644
--- a/libavcodec/x86/dsputil.asm
+++ b/libavcodec/x86/dsputil.asm
@@ -1,6 +1,8 @@
 ;******************************************************************************
 ;* MMX optimized DSP utils
 ;* Copyright (c) 2008 Loren Merritt
+;* Copyright (c) 2003-2013 Michael Niedermayer
+;* Copyright (c) 2013 Daniel Kang
 ;*
 ;* This file is part of FFmpeg.
 ;*