Accented letters messed up in PDF readers navigator with LuaLaTeX

I have something like this:

\documentclass{beamer}
\usepackage{fontspec}
\begin{document}
\section{é}
\begin{frame}
test
\end{frame}
\end{document}


Problem is that the section name is messed up into the navigation bar of any PDF reader I tried (Okular on Linux, Acrobat Reader on Win, etc.). On the other hand the section name is printed correctly into the PDF itself (i.e. into the . table of contents, etc.)

Is there something I can do (in LaTeX) to fix this?

Add \hypersetup{pdfencoding=auto} to your preamble.