diff --git a/test/disabled/test-sendfd.js b/test/disabled/test-sendfd.js
index 89367369bbdba5..3352e63532c127 100644
--- a/test/disabled/test-sendfd.js
+++ b/test/disabled/test-sendfd.js
@@ -50,7 +50,6 @@
 const common = require('../common');
 const assert = require('assert');
 
-const buffer = require('buffer');
 const child_process = require('child_process');
 const fs = require('fs');
 const net = require('net');
@@ -112,7 +111,7 @@ var srv = net.createServer(function(s) {
   var str = JSON.stringify(DATA) + '\n';
 
   DATA.ord = DATA.ord + 1;
-  var buf = buffer.Buffer.allocUnsafe(str.length);
+  var buf = Buffer.allocUnsafe(str.length);
   buf.write(JSON.stringify(DATA) + '\n', 'utf8');
 
   s.write(str, 'utf8', pipeFDs[1]);
diff --git a/test/internet/test-dgram-broadcast-multi-process.js b/test/internet/test-dgram-broadcast-multi-process.js
index a79c05e18e1675..79e139248454d5 100644
--- a/test/internet/test-dgram-broadcast-multi-process.js
+++ b/test/internet/test-dgram-broadcast-multi-process.js
@@ -25,7 +25,6 @@ const assert = require('assert');
 const dgram = require('dgram');
 const util = require('util');
 const networkInterfaces = require('os').networkInterfaces();
-const Buffer = require('buffer').Buffer;
 const fork = require('child_process').fork;
 const LOCAL_BROADCAST_HOST = '255.255.255.255';
 const TIMEOUT = common.platformTimeout(5000);
diff --git a/test/pummel/test-https-no-reader.js b/test/pummel/test-https-no-reader.js
index 2a446bfbdd3add..cc77993a7312f6 100644
--- a/test/pummel/test-https-no-reader.js
+++ b/test/pummel/test-https-no-reader.js
@@ -29,7 +29,6 @@ if (!common.hasCrypto) {
 }
 const https = require('https');
 
-const Buffer = require('buffer').Buffer;
 const fs = require('fs');
 const path = require('path');