Losing UTF-8 when rendering one file inside anoter

[deemytch]

$page = $haml->render_file("$doc_root/page.haml", cfg => $config );
$layout = $haml->render_file("$doc_root/layout.haml", yield => $page );

renders the first time to something like that

<a class='navbar-brand' href='/'>Ши���н</a>
<h1 class='h1 navbar-right'>VPN и �е��</h1>

than repeating running the same code renders all ok.
checked with perl 5.10 openwrt, and 5.18.2 x86-64 linux.
file sizes are:

2.4K layout.haml
3.2K page.haml

[vti]

Try passing encoding option to the constructor.