diff --git a/lib/internal/safe_globals.js b/lib/internal/safe_globals.js
index ad58fa662b53ef..31de4137f0ad53 100644
--- a/lib/internal/safe_globals.js
+++ b/lib/internal/safe_globals.js
@@ -1,9 +1,7 @@
 'use strict';
 
 const copyProps = (unsafe, safe) => {
-  for (const key of [...Object.getOwnPropertyNames(unsafe),
-                     ...Object.getOwnPropertySymbols(unsafe)
-  ]) {
+  for (const key of Reflect.ownKeys(unsafe)) {
     if (!Object.getOwnPropertyDescriptor(safe, key)) {
       Object.defineProperty(
         safe,