diff --git a/test/parallel/test-runner-run.mjs b/test/parallel/test-runner-run.mjs
index d61e77e68f3d03..6517f8d8a5fb34 100644
--- a/test/parallel/test-runner-run.mjs
+++ b/test/parallel/test-runner-run.mjs
@@ -1,11 +1,14 @@
+// Flags: --expose-internals
+
 import * as common from '../common/index.mjs';
 import * as fixtures from '../common/fixtures.mjs';
 import { join } from 'node:path';
 import { describe, it, run } from 'node:test';
 import { dot, spec, tap } from 'node:test/reporters';
 import assert from 'node:assert';
-import testStream from 'node:stream';
+import stream from 'internal/test_runner/tests_stream';
 
+const { TestsStream } = stream;
 const testFixtures = fixtures.path('test-runner');
 
 describe('require(\'node:test\').run', { concurrency: true }, () => {
@@ -471,7 +474,7 @@ describe('require(\'node:test\').run', { concurrency: true }, () => {
       const stream = run({
         files: [join(testFixtures, 'default-behavior/test/random.cjs')],
         setup: common.mustCall((root) => {
-          assert(root instanceof testStream);
+          assert(root instanceof TestsStream);
         }),
       });
       stream.on('test:fail', common.mustNotCall());