diff --git a/examples/shared/apppll.h b/examples/shared/apppll.h
index 7cbfec80..1312c0ab 100644
--- a/examples/shared/apppll.h
+++ b/examples/shared/apppll.h
@@ -1,4 +1,5 @@
-
+// Copyright 2022 XMOS LIMITED.
+// This Software is subject to the terms of the XMOS Public Licence: Version 1.
 #include <stdint.h>
 #include "xassert.h"