Updated copyright notices
diff --git a/libcelt/pitch.c b/libcelt/pitch.c
index 36e6bfc..7e06f45 100644
--- a/libcelt/pitch.c
+++ b/libcelt/pitch.c
@@ -1,5 +1,6 @@
-/* (C) 2007-2008 Jean-Marc Valin, CSIRO
-*/
+/* Copyright (c) 2007-2008 CSIRO
+   Copyright (c) 2007-2009 Xiph.Org Foundation
+   Written by Jean-Marc Valin */
 /**
    @file pitch.c
    @brief Pitch analysis