diff --git a/dottes.tex.header b/dottes.tex.header
index 363d5f3..33feeee 100644
--- a/dottes.tex.header
+++ b/dottes.tex.header
@@ -64,6 +64,9 @@
 
 \input{intro.txt}
 
+This book is a work in progress. You can download the latest version from
+\url{http://lists.cryhavoc.org.uk/dottes}.
+
 % -----
 
 \section{Tunes}