diff --git a/bn.tex b/bn.tex
index 70a0667..71b6840 100644
--- a/bn.tex
+++ b/bn.tex
@@ -49,7 +49,7 @@
 \begin{document}
 \frontmatter
 \pagestyle{empty}
-\title{LibTomMath User Manual \\ v0.42}
+\title{LibTomMath User Manual \\ v0.42.0}
 \author{Tom St Denis \\ tomstdenis@gmail.com}
 \maketitle
 This text, the library and the accompanying textbook are all hereby placed in the public domain.  This book has been