3 files changed, 8 insertions, 23 deletions
diff --git a/packages/integrations/netlify/src/index.ts b/packages/integrations/netlify/src/index.ts
index 11dfafe51..c48b952af 100644
--- a/packages/integrations/netlify/src/index.ts
+++ b/packages/integrations/netlify/src/index.ts
@@ -141,16 +141,6 @@ async function writeNetlifyFrameworkConfig(config: AstroConfig, logger: AstroInt
 	);
 }
 
-// TODO: remove once we don't use a TLA anymore
-async function shouldExternalizeAstroEnvSetup() {
-	try {
-		await import('astro/env/setup');
-		return false;
-	} catch {
-		return true;
-	}
-}
-
 export interface NetlifyIntegrationConfig {
 	/**
 	 * If enabled, On-Demand-Rendered pages are cached for up to a year.
@@ -435,11 +425,6 @@ export default function netlifyIntegration(
 								ignored: [fileURLToPath(new URL('./.netlify/**', rootDir))],
 							},
 						},
-						...((await shouldExternalizeAstroEnvSetup())
-							? {
-									ssr: { external: ['astro/env/setup'] },
-								}
-							: {}),
 					},
 					image: {
 						service: {
diff --git a/packages/integrations/netlify/src/polyfill.ts b/packages/integrations/netlify/src/polyfill.ts
new file mode 100644
index 000000000..dc00f45d7
--- /dev/null
+++ b/packages/integrations/netlify/src/polyfill.ts
@@ -0,0 +1,3 @@
+import { applyPolyfills } from 'astro/app/node';
+
+applyPolyfills();
diff --git a/packages/integrations/netlify/src/ssr-function.ts b/packages/integrations/netlify/src/ssr-function.ts
index 22925ddaa..5ea2e97f1 100644
--- a/packages/integrations/netlify/src/ssr-function.ts
+++ b/packages/integrations/netlify/src/ssr-function.ts
@@ -1,15 +1,12 @@
+// Keep at the top
+import './polyfill.js';
+
 import type { Context } from '@netlify/functions';
 import type { SSRManifest } from 'astro';
 import { App } from 'astro/app';
-import { applyPolyfills } from 'astro/app/node';
-
-applyPolyfills();
+import { setGetEnv } from 'astro/env/setup';
 
-// Won't throw if the virtual module is not available because it's not supported in
-// the users's astro version or if astro:env is not enabled in the project
-await import('astro/env/setup')
-	.then((mod) => mod.setGetEnv((key) => process.env[key]))
-	.catch(() => {});
+setGetEnv((key) => process.env[key]);
 
 export interface Args {
 	middlewareSecret: string;