diff --git a/test/sequential/test-debugger-invalid-args.js b/test/sequential/test-debugger-invalid-args.js
index 3f131a3c9bda1c..ef2da6cc33ecf6 100644
--- a/test/sequential/test-debugger-invalid-args.js
+++ b/test/sequential/test-debugger-invalid-args.js
@@ -21,7 +21,7 @@ const { createServer } = require('net');
 
 // Launch w/ invalid host:port.
 {
-  const cli = startCLI(['localhost:914']);
+  const cli = startCLI([`localhost:${common.PORT}`]);
   cli.quit()
     .then((code) => {
       assert.match(