diff --git a/packages/parser/tests/test-util.ts b/packages/parser/tests/test-util.ts
index 10347776b..a73a12ae8 100644
--- a/packages/parser/tests/test-util.ts
+++ b/packages/parser/tests/test-util.ts
@@ -1,3 +1,4 @@
+import { expect, vi } from 'vitest';
 import type { ParseResult } from 'langium';
 
 const consoleMock = vi.spyOn(console, 'log').mockImplementation(() => {