2 files changed, 17 insertions, 5 deletions
diff --git a/packages/integrations/netlify/src/index.ts b/packages/integrations/netlify/src/index.ts
index 8485afffb..cd13d9362 100644
--- a/packages/integrations/netlify/src/index.ts
+++ b/packages/integrations/netlify/src/index.ts
@@ -124,6 +124,16 @@ async function writeNetlifyDeployConfig(config: AstroConfig, logger: AstroIntegr
 	);
 }
 
+// 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.
@@ -362,6 +372,11 @@ 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/ssr-function.ts b/packages/integrations/netlify/src/ssr-function.ts
index 46778ea07..dba0dbead 100644
--- a/packages/integrations/netlify/src/ssr-function.ts
+++ b/packages/integrations/netlify/src/ssr-function.ts
@@ -3,13 +3,10 @@ import type { SSRManifest } from 'astro';
 import { App } from 'astro/app';
 import { applyPolyfills } from 'astro/app/node';
 
-type EnvSetupModule = typeof import('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
-const setupModule = 'astro/env/setup';
-await import(/* @vite-ignore */ setupModule)
-	.then((mod: EnvSetupModule) => mod.setGetEnv((key) => process.env[key]))
+await import('astro/env/setup')
+	.then((mod) => mod.setGetEnv((key) => process.env[key]))
 	.catch(() => {});
 
 applyPolyfills();