diff --git a/packages/kit/src/core/sync/write_tsconfig.spec.js b/packages/kit/src/core/sync/write_tsconfig.spec.js
index 94590cff00ac..86a62109bc06 100644
--- a/packages/kit/src/core/sync/write_tsconfig.spec.js
+++ b/packages/kit/src/core/sync/write_tsconfig.spec.js
@@ -100,6 +100,7 @@ test('Creates tsconfig include from kit.files', () => {
 
 	expect(include).toEqual([
 		'ambient.d.ts',
+		'non-ambient.d.ts',
 		'./types/**/$types.d.ts',
 		'../vite.config.js',
 		'../vite.config.ts',