diff --git a/packages/astro/src/core/build/index.ts b/packages/astro/src/core/build/index.ts
index 65c01697ba4c..58433ae23777 100644
--- a/packages/astro/src/core/build/index.ts
+++ b/packages/astro/src/core/build/index.ts
@@ -174,10 +174,12 @@ class AstroBuilder {
 
 	private validateConfig() {
 		const { config } = this.settings;
-		
+
 		// outDir gets blown away so it can't be the root.
-		if(config.outDir.toString() === config.root.toString()) {
-			throw new Error(`the outDir cannot be the root folder. Please build to a folder such as dist.`);
+		if (config.outDir.toString() === config.root.toString()) {
+			throw new Error(
+				`the outDir cannot be the root folder. Please build to a folder such as dist.`
+			);
 		}
 	}
 
diff --git a/packages/astro/test/dont-delete-root.test.js b/packages/astro/test/dont-delete-root.test.js
index 7aef854d1402..954a4fe7b28a 100644
--- a/packages/astro/test/dont-delete-root.test.js
+++ b/packages/astro/test/dont-delete-root.test.js
@@ -13,7 +13,7 @@ describe('outDir set to project root', async () => {
 		fixture = await loadFixture({ root: './fixtures/dont-delete-me/' });
 		try {
 			await fixture.build();
-		} catch(err) {
+		} catch (err) {
 			error = err;
 		}
 	});
@@ -24,13 +24,9 @@ describe('outDir set to project root', async () => {
 	});
 
 	it('Files have not been deleted', async () => {
-		const expectedFiles = [
-			'package.json',
-			'astro.config.mjs',
-			'src/pages/index.astro'
-		];
+		const expectedFiles = ['package.json', 'astro.config.mjs', 'src/pages/index.astro'];
 
-		for(const rel of expectedFiles) {
+		for (const rel of expectedFiles) {
 			const root = new URL('./fixtures/dont-delete-me/', import.meta.url);
 			const url = new URL('./' + rel, root);
 			const stats = await fs.promises.stat(url);