diff --git a/src/node_env_var.cc b/src/node_env_var.cc
index c63cb2c37fb3e0..8b8594e88f3750 100644
--- a/src/node_env_var.cc
+++ b/src/node_env_var.cc
@@ -20,6 +20,7 @@ using v8::Name;
 using v8::NamedPropertyHandlerConfiguration;
 using v8::NewStringType;
 using v8::Nothing;
+using v8::Null;
 using v8::Object;
 using v8::ObjectTemplate;
 using v8::PropertyCallbackInfo;
@@ -353,6 +354,17 @@ MaybeLocal<Object> CreateEnvVarProxy(Local<Context> context,
   env_proxy_template->SetHandler(NamedPropertyHandlerConfiguration(
       EnvGetter, EnvSetter, EnvQuery, EnvDeleter, EnvEnumerator, data,
       PropertyHandlerFlags::kHasNoSideEffect));
-  return scope.EscapeMaybe(env_proxy_template->NewInstance(context));
+
+  MaybeLocal<Object> env_proxy_ml = env_proxy_template->NewInstance(context);
+  Local<Object> env_proxy;
+  if (!env_proxy_ml.ToLocal(&env_proxy)) {
+    return MaybeLocal<Object>();
+  }
+
+  if (env_proxy->SetPrototype(context, Null(isolate)).IsNothing()) {
+    return MaybeLocal<Object>();
+  }
+
+  return scope.Escape(env_proxy);
 }
 }  // namespace node