diff --git a/chapter06/texinfo.xml b/chapter06/texinfo.xml
index cbb9fb409..9fc61bde0 100644
--- a/chapter06/texinfo.xml
+++ b/chapter06/texinfo.xml
@@ -88,7 +88,7 @@ done
Installed programs
info, infokey, install-info,
-makeinfo, texi2dvi, and texindex
+makeinfo, texi2dvi, texi2pdf, and texindex
Short Descriptions