Setting page title when using error-404.hbs

Good morning!

I added following error-404.hbs to custom theme.

{{!< default}}

<div class="content-area">
    <main class="site-main">
        <article class="single post no-image page">
            <header class="single-header kg-canvas">
                <h1 class="single-title">Page not found</h1>
            <div class="single-content gh-content kg-canvas">
                    Please check out {{#link href="/change-log/"}}change log{{/link}} or go back to <a href="{{@site.url}}">home page</a>.

I see page title is set to name of site. Is it possible to change that to “Page not found”?

Thanks for helping out!