1 files changed, 4 insertions, 2 deletions
diff --git a/test/parallel/test-worker-exit-code.js b/test/parallel/test-worker-exit-code.js
index bb47e1cece..b621389b49 100644
--- a/test/parallel/test-worker-exit-code.js
+++ b/test/parallel/test-worker-exit-code.js
@@ -7,9 +7,11 @@ const common = require('../common');
 
 const assert = require('assert');
 const worker = require('worker_threads');
-const { Worker, isMainThread, parentPort } = worker;
+const { Worker, parentPort } = worker;
 
-if (isMainThread) {
+// Do not use isMainThread so that this test itself can be run inside a Worker.
+if (!process.env.HAS_STARTED_WORKER) {
+  process.env.HAS_STARTED_WORKER = 1;
   parent();
 } else {
   if (!parentPort) {