diff --git a/test/fixtures/wait-for-others.ts b/test/fixtures/wait-for-others.ts
index 13f5255..a49c4bf 100644
--- a/test/fixtures/wait-for-others.ts
+++ b/test/fixtures/wait-for-others.ts
@@ -1,10 +1,12 @@
 import { threadId } from 'worker_threads'
 
-// @ts-ignore
-export default async function ([i32array, n]) {
+export default async function ([i32array, n]: [
+  array: Int32Array,
+  num: number
+]) {
   Atomics.add(i32array, 0, 1)
   Atomics.notify(i32array, 0, Infinity)
-  let lastSeenValue
+  let lastSeenValue: number
   while ((lastSeenValue = Atomics.load(i32array, 0)) < n) {
     Atomics.wait(i32array, 0, lastSeenValue)
   }