diff --git a/test/addons/callback-scope/test-resolve-async.js b/test/addons/callback-scope/test-resolve-async.js
index 98e1910b49df7b..c2942397737359 100644
--- a/test/addons/callback-scope/test-resolve-async.js
+++ b/test/addons/callback-scope/test-resolve-async.js
@@ -4,7 +4,9 @@ const common = require('../../common');
 const assert = require('assert');
 const { testResolveAsync } = require(`./build/${common.buildType}/binding`);
 
+// Checks that resolving promises from C++ works.
+
 let called = false;
 testResolveAsync().then(() => { called = true; });
 
-setTimeout(() => { assert(called); }, common.platformTimeout(50));
+process.on('beforeExit', () => { assert(called); });