# Unwanted italics in page headers (classicthesis)

In my section titles I sometimes have to use italic letters for the entry in the table of contents. Unfortunately, this results in italic letters in the page headers. How can I avoid this? The page headers should look like the section titles.

\documentclass[twoside,openright,titlepage,numbers=noenddot,headinclude,
footinclude=true,cleardoublepage=empty,
BCOR=5mm,paper=a4,fontsize=10pt]{scrbook}
\usepackage{lipsum}

\usepackage[parts,beramono,eulerchapternumbers,%
listings,manychapters,%
floatperchapter]{classicthesis}

\begin{document}
\tableofcontents
\chapter{First chapter}
\section{First section}
\lipsum[1-18]
\section[\textit{Second} section]{Second section}
\lipsum[1-12]
\end{document}


If you define a short title for your section or chapter, the classicthesis format takes this as your header text as well. With the command \sectionmark{} (and similarly \chaptermark{}) you are able to define a custom header version of your title. In this case, you are forced to use it in order to restore the original title writing.

% arara: pdflatex
% arara: pdflatex

footinclude=true,cleardoublepage=empty,
BCOR=5mm,paper=a4,fontsize=10pt]{scrbook}
\usepackage{lipsum}

\usepackage[parts,beramono,eulerchapternumbers,%
listings,manychapters,%
floatperchapter]{classicthesis}

\begin{document}
\tableofcontents