diff --git a/test/parallel/test-https-agent-servername.js b/test/parallel/test-https-agent-servername.js
index df14d113994f89..e59d0fd6d06e12 100644
--- a/test/parallel/test-https-agent-servername.js
+++ b/test/parallel/test-https-agent-servername.js
@@ -14,7 +14,7 @@ const options = {
 };
 
 
-const server = https.Server(options, function(req, res) {
+const server = https.Server(options, (req, res) => {
   res.writeHead(200);
   res.end('hello world\n');
 });
@@ -27,11 +27,11 @@ server.listen(0, function() {
     rejectUnauthorized: true,
     servername: 'agent1',
     ca: options.ca
-  }, function(res) {
+  }, (res) => {
     res.resume();
     console.log(res.statusCode);
     server.close();
-  }).on('error', function(e) {
+  }).on('error', (e) => {
     console.log(e.message);
     process.exit(1);
   });