diff --git a/doc/presentation.tex b/doc/presentation.tex
index 8e0c6c6..e21dd8e 100644
--- a/doc/presentation.tex
+++ b/doc/presentation.tex
@@ -236,6 +236,13 @@ Motivation and examples
 \end{verbatim}
 \end{frame}
 
+\begin{frame}[fragile]
+\footnotesize
+\begin{verbatim}
+ (<wrap> <comb wraplevel=0 (n) (* n 2)>)
+\end{verbatim}
+\end{frame}
+
 \begin{frame}[fragile]
 \footnotesize
 \begin{verbatim}