diff --git a/packages/astro/src/i18n/vite-plugin-i18n.ts b/packages/astro/src/i18n/vite-plugin-i18n.ts
index bf5a0da6e4ebe..47891083899d3 100644
--- a/packages/astro/src/i18n/vite-plugin-i18n.ts
+++ b/packages/astro/src/i18n/vite-plugin-i18n.ts
@@ -32,14 +32,17 @@ export default function astroInternationalization({
 		name: 'astro:i18n',
 		enforce: 'pre',
 		config(config) {
-			const i18nConfig: I18nInternalConfig = { base, format, site, trailingSlash, i18n };
-			const finalConfig= {
-				...i18nConfig,
-					isBuild: isCommandBuild
+			const i18nConfig: I18nInternalConfig = {
+				base,
+				format,
+				site,
+				trailingSlash,
+				i18n,
+				isBuild: isCommandBuild,
 			};
 			return {
 				define: {
-					__ASTRO_INTERNAL_I18N_CONFIG__: JSON.stringify(finalConfig),
+					__ASTRO_INTERNAL_I18N_CONFIG__: JSON.stringify(i18nConfig),
 				},
 			};
 		},
diff --git a/packages/astro/src/virtual-modules/i18n.ts b/packages/astro/src/virtual-modules/i18n.ts
index 4ee6c33f17396..f710686677872 100644
--- a/packages/astro/src/virtual-modules/i18n.ts
+++ b/packages/astro/src/virtual-modules/i18n.ts
@@ -2,9 +2,10 @@ import * as I18nInternals from '../i18n/index.js';
 import type { I18nInternalConfig } from '../i18n/vite-plugin-i18n.js';
 export { normalizeTheLocale, toCodes, toPaths } from '../i18n/index.js';
 
-// @ts-expect-error
-const { trailingSlash, format, domains, site, i18n } = __ASTRO_INTERNAL_I18N_CONFIG__ as I18nInternalConfig;
-const { defaultLocale, locales, routing, isBuild } = i18n!;
+const { trailingSlash, format, site, i18n, isBuild } =
+	// @ts-expect-error
+	__ASTRO_INTERNAL_I18N_CONFIG__ as I18nInternalConfig;
+const { defaultLocale, locales, routing, domains } = i18n!;
 const base = import.meta.env.BASE_URL;
 
 export type GetLocaleOptions = I18nInternals.GetLocaleOptions;