diff --git a/doc/blurb.but b/doc/blurb.but
index 565dee21..e4491e93 100644
--- a/doc/blurb.but
+++ b/doc/blurb.but
@@ -16,3 +16,5 @@ PSCP, Plink, Pageant and PuTTYgen.
 
 \copyright Copyright 2001 Simon Tatham. All rights reserved. You may
 distribute this documentation under the MIT licence.
+
+\versionid $Id: blurb.but,v 1.4 2001/11/25 17:05:01 simon Exp $