diff --git a/sys/msdos/Install.dos b/sys/msdos/Install.dos
index 2b2be2096..9e2a16e5e 100644
--- a/sys/msdos/Install.dos
+++ b/sys/msdos/Install.dos
@@ -1,5 +1,5 @@
 
-	   Copyright (c) NetHack PC Development Team 1990-2023.
+	   Copyright (c) NetHack PC Development Team 1990-2026.
        NetHack may be freely redistributed.  See license for details.
        ==============================================================
               Instructions for compiling and installing