diff --git a/lib/internal/dns/utils.js b/lib/internal/dns/utils.js
index f895a46c1a037e..da6e66f2b6503d 100644
--- a/lib/internal/dns/utils.js
+++ b/lib/internal/dns/utils.js
@@ -34,6 +34,8 @@ const {
   ERR_INVALID_ARG_VALUE,
   ERR_INVALID_IP_ADDRESS,
 } = errors.codes;
+function NullObject() {}
+NullObject.prototype = ObjectCreate(null);
 
 function validateTimeout(options) {
   const { timeout = -1 } = { ...options };
@@ -221,7 +223,7 @@ function setDefaultResultOrder(value) {
 }
 
 function createResolverClass(resolver) {
-  const resolveMap = ObjectCreate(null);
+  const resolveMap = new NullObject();
 
   class Resolver extends ResolverBase {}