diff --git a/test/parallel/test-net-pipe-connect-errors.js b/test/parallel/test-net-pipe-connect-errors.js
index 0f4704ed192594..8e341015d96b3f 100644
--- a/test/parallel/test-net-pipe-connect-errors.js
+++ b/test/parallel/test-net-pipe-connect-errors.js
@@ -44,7 +44,8 @@ var notSocketClient = net.createConnection(emptyTxt, function() {
 });
 
 notSocketClient.on('error', function(err) {
-  assert(err.code === 'ENOTSOCK' || err.code === 'ECONNREFUSED');
+  assert(err.code === 'ENOTSOCK' || err.code === 'ECONNREFUSED',
+    `received ${err.code} instead of ENOTSOCK or ECONNREFUSED`);
   notSocketErrorFired = true;
 });