1 files changed, 2 insertions, 2 deletions
diff --git a/tests/012_async.ts b/tests/012_async.ts
index 57ae355c2..12df73b3e 100644
--- a/tests/012_async.ts
+++ b/tests/012_async.ts
@@ -1,6 +1,6 @@
 // Check that we can use the async keyword.
-async function main() {
-  await new Promise((resolve, reject) => {
+async function main(): Promise<void> {
+  await new Promise(resolve => {
     console.log("2");
     setTimeout(resolve, 100);
   });