diff --git a/src/Umbraco.Web.UI.Client/apps/auth/vite.config.ts b/src/Umbraco.Web.UI.Client/apps/auth/vite.config.ts
index 30c9cfb3bd..c542eee6bd 100644
--- a/src/Umbraco.Web.UI.Client/apps/auth/vite.config.ts
+++ b/src/Umbraco.Web.UI.Client/apps/auth/vite.config.ts
@@ -13,6 +13,11 @@ export default defineConfig({
 		sourcemap: true,
 		rollupOptions: {
 			external: [/^@umbraco-cms\/backoffice\//],
+			output: {
+				manualChunks: {
+					uui: ['@umbraco-ui/uui'],
+				},
+			},
 		},
 		outDir: '../../../Umbraco.Cms.StaticAssets/wwwroot/umbraco/login',
 		emptyOutDir: true,