diff --git a/lib/_tls_wrap.js b/lib/_tls_wrap.js
index 1d6ccbb8a9cbaf..41dfdd1da7d926 100644
--- a/lib/_tls_wrap.js
+++ b/lib/_tls_wrap.js
@@ -689,12 +689,15 @@ function makeSocketMethodProxy(name) {
   };
 }
 
-[
+const socketProxiedMethods = [
   'getFinished', 'getPeerFinished', 'getSession', 'isSessionReused',
   'getEphemeralKeyInfo', 'getProtocol', 'getTLSTicket'
-].forEach((method) => {
-  TLSSocket.prototype[method] = makeSocketMethodProxy(method);
-});
+];
+
+for (n = 0; n < socketProxiedMethods.length; n++) {
+  TLSSocket.prototype[socketProxiedMethods[n]] =
+    makeSocketMethodProxy(socketProxiedMethods[n]);
+}
 
 TLSSocket.prototype.getCipher = function(err) {
   if (this._handle)