Allow an adapter to export default (#3022)

* Allow an adapter to export default

* Adds a changeset

2 files changed, 3 insertions, 3 deletions

diff --git a/packages/integrations/vercel/src/index.ts b/packages/integrations/vercel/src/index.ts
index b780f6d37..22dbc3eef 100644
--- a/packages/integrations/vercel/src/index.ts
+++ b/packages/integrations/vercel/src/index.ts
@@ -13,7 +13,7 @@ export function getAdapter(): AstroAdapter {
 	return {
 		name: '@astrojs/vercel',
 		serverEntrypoint: '@astrojs/vercel/server-entrypoint',
-		exports: ['_default'],
+		exports: ['default'],
 	};
 }
 
diff --git a/packages/integrations/vercel/src/server-entrypoint.ts b/packages/integrations/vercel/src/server-entrypoint.ts
index df01fe32a..1061f8eb4 100644
--- a/packages/integrations/vercel/src/server-entrypoint.ts
+++ b/packages/integrations/vercel/src/server-entrypoint.ts
@@ -12,7 +12,7 @@ polyfill(globalThis, {
 export const createExports = (manifest: SSRManifest) => {
 	const app = new App(manifest);
 
-	const _default = async (req: IncomingMessage, res: ServerResponse) => {
+	const handler = async (req: IncomingMessage, res: ServerResponse) => {
 		let request: Request;
 
 		try {
@@ -30,5 +30,5 @@ export const createExports = (manifest: SSRManifest) => {
 		await setResponse(res, await app.render(request));
 	};
 
-	return { _default };
+	return { 'default': handler };
 };