diff --git a/lang/occam/comp/occam.g b/lang/occam/comp/occam.g
index 7902292f..5fea8ed2 100644
--- a/lang/occam/comp/occam.g
+++ b/lang/occam/comp/occam.g
@@ -1,3 +1,7 @@
+/*
+ * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ * See the copyright notice in the ACK home directory, in the file "Copyright".
+ */
 /*	OCCAM		*/
 {
 #include "token.h"