diff --git a/test/parallel/test-debug-args.js b/test/parallel/test-debug-args.js
index e5f9f37161..a4ed4f9f1e 100644
--- a/test/parallel/test-debug-args.js
+++ b/test/parallel/test-debug-args.js
@@ -2,6 +2,6 @@
 // Flags: --debug-code
 
 require('../common');
-var assert = require('assert');
+const assert = require('assert');
 
-assert.notEqual(process.execArgv.indexOf('--debug-code'), -1);
+assert(process.execArgv.includes('--debug-code'));