diff --git a/benchmark/http/bench-parser.js b/benchmark/http/bench-parser.js
index 4c691d71345da3..d629fe67e59e76 100644
--- a/benchmark/http/bench-parser.js
+++ b/benchmark/http/bench-parser.js
@@ -14,7 +14,6 @@ const bench = common.createBenchmark(main, {
   n: [1e5],
 });
 
-
 function main({ len, n }) {
   var header = `GET /hello HTTP/1.1${CRLF}Content-Type: text/plain${CRLF}`;
 
@@ -26,7 +25,6 @@ function main({ len, n }) {
   processHeader(Buffer.from(header), n);
 }
 
-
 function processHeader(header, n) {
   const parser = newParser(REQUEST);
 
@@ -38,7 +36,6 @@ function processHeader(header, n) {
   bench.end(n);
 }
 
-
 function newParser(type) {
   const parser = new HTTPParser(type);
 
diff --git a/benchmark/http/simple.js b/benchmark/http/simple.js
index d5351815fc1b7e..bbc59a341d15ba 100644
--- a/benchmark/http/simple.js
+++ b/benchmark/http/simple.js
@@ -1,6 +1,5 @@
 'use strict';
 const common = require('../common.js');
-const PORT = common.PORT;
 
 const bench = common.createBenchmark(main, {
   // unicode confuses ab on os x.
@@ -13,9 +12,8 @@ const bench = common.createBenchmark(main, {
 });
 
 function main({ type, len, chunks, c, chunkedEnc, res }) {
-  process.env.PORT = PORT;
   var server = require('../fixtures/simple-http-server.js')
-  .listen(PORT)
+  .listen(common.PORT)
   .on('listening', function() {
     const path = `/${type}/${len}/${chunks}/${res}/${chunkedEnc}`;
 
diff --git a/benchmark/http/upgrade.js b/benchmark/http/upgrade.js
index 0feaecc8ff19e6..6b39323396a2e3 100644
--- a/benchmark/http/upgrade.js
+++ b/benchmark/http/upgrade.js
@@ -1,7 +1,6 @@
 'use strict';
 
 const common = require('../common.js');
-const PORT = common.PORT;
 const net = require('net');
 
 const bench = common.createBenchmark(main, {
@@ -20,7 +19,6 @@ const resData = 'HTTP/1.1 101 Web Socket Protocol Handshake\r\n' +
                 '\r\n\r\n';
 
 function main({ n }) {
-  process.env.PORT = PORT;
   var server = require('../fixtures/simple-http-server.js')
     .listen(common.PORT)
     .on('listening', function() {
diff --git a/benchmark/http2/respond-with-fd.js b/benchmark/http2/respond-with-fd.js
index 6076cf91be9d84..fa7b2fbd16b3e6 100644
--- a/benchmark/http2/respond-with-fd.js
+++ b/benchmark/http2/respond-with-fd.js
@@ -1,7 +1,6 @@
 'use strict';
 
 const common = require('../common.js');
-const PORT = common.PORT;
 const path = require('path');
 const fs = require('fs');
 
@@ -25,7 +24,7 @@ function main({ requests, streams, clients }) {
       stream.respondWithFD(fd);
       stream.on('error', (err) => {});
     });
-    server.listen(PORT, () => {
+    server.listen(common.PORT, () => {
       bench.http({
         path: '/',
         requests,
diff --git a/benchmark/http2/simple.js b/benchmark/http2/simple.js
index 37c78d340181a8..cf017e6735411e 100644
--- a/benchmark/http2/simple.js
+++ b/benchmark/http2/simple.js
@@ -1,11 +1,8 @@
 'use strict';
 
 const common = require('../common.js');
-const PORT = common.PORT;
-
 const path = require('path');
 const fs = require('fs');
-
 const file = path.join(path.resolve(__dirname, '../fixtures'), 'alice.html');
 
 const bench = common.createBenchmark(main, {
@@ -24,7 +21,7 @@ function main({ requests, streams, clients }) {
     out.pipe(stream);
     stream.on('error', (err) => {});
   });
-  server.listen(PORT, () => {
+  server.listen(common.PORT, () => {
     bench.http({
       path: '/',
       requests,
diff --git a/benchmark/http2/write.js b/benchmark/http2/write.js
index 7a802ef84fd9ed..6fcb1254ca3f05 100644
--- a/benchmark/http2/write.js
+++ b/benchmark/http2/write.js
@@ -1,7 +1,6 @@
 'use strict';
 
 const common = require('../common.js');
-const PORT = common.PORT;
 
 const bench = common.createBenchmark(main, {
   streams: [100, 200, 1000],
@@ -26,7 +25,7 @@ function main({ streams, length, size }) {
     }
     write();
   });
-  server.listen(PORT, () => {
+  server.listen(common.PORT, () => {
     bench.http({
       path: '/',
       requests: 10000,