diff --git a/tests/instance_wrapper_runtime_test.ts b/tests/instance_wrapper_runtime_test.ts
index 55ecf5b..158b90d 100644
--- a/tests/instance_wrapper_runtime_test.ts
+++ b/tests/instance_wrapper_runtime_test.ts
@@ -186,7 +186,7 @@ Deno.test("Timeout should kill worker and Pool should create new worker on next
   assertEquals(inst.pool!.threads.length, 0);
   
   const task = inst.execute("foo", {});
-  const buffer = await task;
+  await task;
 
   assertEquals(inst.pool!.threads.length, 1);
 });