diff --git a/mach/i80/as/mach5.c b/mach/i80/as/mach5.c
index e69de29b..5b3ef782 100644
--- a/mach/i80/as/mach5.c
+++ b/mach/i80/as/mach5.c
@@ -0,0 +1,4 @@
+/*
+ * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
+ * See the copyright notice in the ACK home directory, in the file "Copyright".
+ */