diff --git a/lib/_tls_common.js b/lib/_tls_common.js
index d8f6afed0bd8fb..de96fa687dcc02 100644
--- a/lib/_tls_common.js
+++ b/lib/_tls_common.js
@@ -240,7 +240,7 @@ exports.translatePeerCertificate = function translatePeerCertificate(c) {
     c.infoAccess = Object.create(null);
 
     // XXX: More key validation?
-    info.replace(/([^\n:]*):([^\n]*)(?:\n|$)/g, function(all, key, val) {
+    info.replace(/([^\n:]*):([^\n]*)(?:\n|$)/g, (all, key, val) => {
       if (key in c.infoAccess)
         c.infoAccess[key].push(val);
       else