diff --git a/packages/integrations/mdx/src/index.ts b/packages/integrations/mdx/src/index.ts
index d91f71c4b6..66ab7b837f 100644
--- a/packages/integrations/mdx/src/index.ts
+++ b/packages/integrations/mdx/src/index.ts
@@ -1,11 +1,11 @@
 import mdxPlugin, { Options as MdxRollupPluginOptions } from '@mdx-js/rollup';
 import type { AstroIntegration } from 'astro';
-import type { RemarkMdxFrontmatterOptions } from 'remark-mdx-frontmatter';
 import { parse as parseESM } from 'es-module-lexer';
-import remarkGfm from 'remark-gfm';
-import remarkSmartypants from 'remark-smartypants';
 import remarkFrontmatter from 'remark-frontmatter';
+import remarkGfm from 'remark-gfm';
+import type { RemarkMdxFrontmatterOptions } from 'remark-mdx-frontmatter';
 import remarkMdxFrontmatter from 'remark-mdx-frontmatter';
+import remarkSmartypants from 'remark-smartypants';
 import { getFileInfo } from './utils.js';
 
 type WithExtends<T> = T | { extends: T };
@@ -18,15 +18,12 @@ type MdxOptions = {
 	 * @see https://github.com/remcohaszing/remark-mdx-frontmatter#options for a full list of options
 	 * @default {{ name: 'frontmatter' }}
 	 */
-	 frontmatterOptions?: RemarkMdxFrontmatterOptions;
-}
+	frontmatterOptions?: RemarkMdxFrontmatterOptions;
+};
 
 const DEFAULT_REMARK_PLUGINS = [remarkGfm, remarkSmartypants];
 
-function handleExtends<T>(
-	config: WithExtends<T[] | undefined>,
-	defaults: T[] = [],
-): T[] {
+function handleExtends<T>(config: WithExtends<T[] | undefined>, defaults: T[] = []): T[] {
 	if (Array.isArray(config)) return config;
 
 	return [...defaults, ...(config?.extends ?? [])];
@@ -50,10 +47,13 @@ export default function mdx(mdxOptions: MdxOptions = {}): AstroIntegration {
 										// We can revisit this if a strong use case to *remove*
 										// YAML frontmatter via config is reported.
 										remarkFrontmatter,
-										[remarkMdxFrontmatter, {
-											name: 'frontmatter',
-											...mdxOptions.frontmatterOptions,
-										}],
+										[
+											remarkMdxFrontmatter,
+											{
+												name: 'frontmatter',
+												...mdxOptions.frontmatterOptions,
+											},
+										],
 									],
 									rehypePlugins: handleExtends(mdxOptions.rehypePlugins),
 									jsx: true,
diff --git a/packages/integrations/mdx/test/mdx-frontmatter.js b/packages/integrations/mdx/test/mdx-frontmatter.js
index 1d8ec36f6f..3021f926fb 100644
--- a/packages/integrations/mdx/test/mdx-frontmatter.js
+++ b/packages/integrations/mdx/test/mdx-frontmatter.js
@@ -29,11 +29,13 @@ describe('MDX frontmatter', () => {
 	it('extracts frontmatter to "customFrontmatter" export when configured', async () => {
 		const fixture = await loadFixture({
 			root: new URL('./fixtures/mdx-custom-frontmatter-name/', import.meta.url),
-			integrations: [mdx({
-				frontmatterOptions: {
-					name: 'customFrontmatter',
-				},
-			})],
+			integrations: [
+				mdx({
+					frontmatterOptions: {
+						name: 'customFrontmatter',
+					},
+				}),
+			],
 		});
 		await fixture.build();