diff --git a/packages/astro-prism/Prism.astro b/packages/astro-prism/Prism.astro
index fab9dafe2..f26e53c13 100644
--- a/packages/astro-prism/Prism.astro
+++ b/packages/astro-prism/Prism.astro
@@ -11,4 +11,7 @@ const { class: className, lang, code } = Astro.props as Props;
 const { classLanguage, html } = runHighlighterWithAstro(lang, code);
 ---
 
-<pre class={[className, classLanguage].filter(Boolean).join(' ')}><code class={classLanguage} set:html={html} /></pre>
+<pre
+	class={[className, classLanguage]
+		.filter(Boolean)
+		.join(' ')}><code class={classLanguage} set:html={html} /></pre>