diff --git a/sys/kern/kern_acl.c b/sys/kern/kern_acl.c
index 0013840c715e..e58f392f3a6b 100644
--- a/sys/kern/kern_acl.c
+++ b/sys/kern/kern_acl.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson
+ * Copyright (c) 1999-2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/kern/kern_cap.c b/sys/kern/kern_cap.c
index 45a2509ba6ed..6f9507e24e22 100644
--- a/sys/kern/kern_cap.c
+++ b/sys/kern/kern_cap.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2000 Robert N. M. Watson
+ * Copyright (c) 2000-2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Copyright (c) 1999 Ilmar S. Habibulin
diff --git a/sys/kern/subr_acl_posix1e.c b/sys/kern/subr_acl_posix1e.c
index 0013840c715e..e58f392f3a6b 100644
--- a/sys/kern/subr_acl_posix1e.c
+++ b/sys/kern/subr_acl_posix1e.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson
+ * Copyright (c) 1999-2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/sys/kern/vfs_acl.c b/sys/kern/vfs_acl.c
index 0013840c715e..e58f392f3a6b 100644
--- a/sys/kern/vfs_acl.c
+++ b/sys/kern/vfs_acl.c
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 1999, 2000, 2001 Robert N. M. Watson
+ * Copyright (c) 1999-2001 Robert N. M. Watson
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without