diff --git a/doc/manual/docbook2latex.xsl b/doc/manual/docbook2latex.xsl
index cc0f8fa..a2bbdf7 100644
--- a/doc/manual/docbook2latex.xsl
+++ b/doc/manual/docbook2latex.xsl
@@ -130,15 +130,15 @@
 
 % use Palatino as serif font:
 % \usepackage{mathpazo}
-\usepackage{charter}
+% \usepackage{charter}
 % use Helvetica as sans-serif font:
 \usepackage{helvet}
 
 % use Bera Mono (a variant of Bitstream Vera Mono) as typewriter font
 % (requires texlive-fontsextra)
-\usepackage[scaled]{beramono}
+% \usepackage[scaled]{beramono}
 % previously: use Courier as typewriter font:
-% \usepackage{courier}
+\usepackage{courier}
 
 \definecolor{colNote}{rgb}{0,0,0}
 \definecolor{colWarning}{rgb}{0,0,0}