1 files changed, 7 insertions, 5 deletions
diff --git a/tests/workers_startup_bench.ts b/tests/workers_startup_bench.ts
index 46b2b2801..53232ed56 100644
--- a/tests/workers_startup_bench.ts
+++ b/tests/workers_startup_bench.ts
@@ -5,11 +5,13 @@ async function bench(): Promise<void> {
   const workers: Worker[] = [];
   for (var i = 1; i <= workerCount; ++i) {
     const worker = new Worker("tests/subdir/bench_worker.ts");
-    const promise = new Promise(resolve => {
-      worker.onmessage = e => {
-        if (e.data.cmdId === 0) resolve();
-      };
-    });
+    const promise = new Promise(
+      (resolve): void => {
+        worker.onmessage = (e): void => {
+          if (e.data.cmdId === 0) resolve();
+        };
+      }
+    );
     worker.postMessage({ cmdId: 0, action: 2 });
     await promise;
     workers.push(worker);