diff --git a/sys/conf/copyright b/sys/conf/copyright
index 57dbf357a21c..4b0cf4301ef2 100644
--- a/sys/conf/copyright
+++ b/sys/conf/copyright
@@ -1,6 +1,6 @@
-Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
-    2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017,
-    2018, 2019, 2020, 2021, 2022
+Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
+    2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013,
+    2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
     The NetBSD Foundation, Inc.  All rights reserved.
 Copyright (c) 1982, 1986, 1989, 1991, 1993
     The Regents of the University of California.  All rights reserved.