diff --git a/test/parallel/test-worker-esm-exit.js b/test/parallel/test-worker-esm-exit.js
index c0b9d874895725..aebb17edda0baf 100644
--- a/test/parallel/test-worker-esm-exit.js
+++ b/test/parallel/test-worker-esm-exit.js
@@ -7,4 +7,6 @@ const { Worker } = require('worker_threads');
 const w = new Worker(fixtures.path('es-modules/import-process-exit.mjs'),
                      { execArgv: ['--experimental-modules'] });
 w.on('error', common.mustNotCall());
-w.on('exit', (code) => assert.strictEqual(code, 42));
+w.on('exit',
+     common.mustCall((code) => assert.strictEqual(code, 42))
+);