diff --git a/test/parallel/test-timer-immediate.js b/test/parallel/test-timers-process-tampering.js
similarity index 51%
rename from test/parallel/test-timer-immediate.js
rename to test/parallel/test-timers-process-tampering.js
index b0f52db1b713d3..766cc9f3560c82 100644
--- a/test/parallel/test-timer-immediate.js
+++ b/test/parallel/test-timers-process-tampering.js
@@ -1,3 +1,6 @@
+// Check that setImmediate works even if process is tampered with.
+// This is a regression test for https://github.com/nodejs/node/issues/17681.
+
 'use strict';
 const common = require('../common');
 global.process = {};  // Boom!