--- a/LMCS-Paper/document/root.tex	Thu Sep 22 07:41:48 2011 +0900
+++ b/LMCS-Paper/document/root.tex	Thu Sep 22 21:43:04 2011 +0900
@@ -76,7 +76,7 @@
 \email{kaliszyk@cs.tsukuba.ac.jp}
 \thanks{$^\star$~This is a revised and expanded version of~\cite{UrbanKaliszyk11}}
 
-\keywords{Nominal Isabelle, variable convention, theorem provers, formal reasoning,lambda-calculus}
+\keywords{Nominal Isabelle, variable convention, theorem provers, formal reasoning, lambda-calculus}
 \subjclass{F.3.1}
 
 \begin{abstract}