fix a few manual warnings

Change-Id: I6abcceeb84d70e32be203049950c6fe4711e8df8

1 files changed, 2 insertions, 2 deletions

diff --git a/manual/intro/main.tex b/manual/intro/main.tex
index 13b15a0ed5..ef091e4550 100644
--- a/manual/intro/main.tex
+++ b/manual/intro/main.tex
@@ -18,11 +18,11 @@
 % Contributors are listed in the file docs/CREDITS-MANUAL
 %
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\ifpdfoutput{
+\Ifpdfoutput{
 \newcommand{\latexbuild}{pdf\LaTeX}}
 {\newcommand{\latexbuild}{\TeX4ht}}
 
-\ifpdfoutput{\chapter*{\centering{Rockbox\\}}}%
+\Ifpdfoutput{\chapter*{\centering{Rockbox\\}}}%
 {\begin{center}{\Large{Rockbox}}\end{center}}
 
 \vspace{1cm}