diff --git a/test/parallel/test-child-process-exec-error.js b/test/parallel/test-child-process-exec-error.js
index 006a2eebb912d0..f937fec5d252fc 100644
--- a/test/parallel/test-child-process-exec-error.js
+++ b/test/parallel/test-child-process-exec-error.js
@@ -1,12 +1,12 @@
 'use strict';
-var common = require('../common');
-var assert = require('assert');
-var child_process = require('child_process');
+const common = require('../common');
+const assert = require('assert');
+const child_process = require('child_process');
 
-function test(fun, code) {
-  fun('does-not-exist', common.mustCall(function(err) {
-    assert.equal(err.code, code);
-    assert(/does\-not\-exist/.test(err.cmd));
+function test(fn, code) {
+  fn('does-not-exist', common.mustCall(function(err) {
+    assert.strictEqual(err.code, code);
+    assert(err.cmd.includes('does-not-exist'));
   }));
 }