From b048d7023c0af35ccb92e350133730e36473fb30 Mon Sep 17 00:00:00 2001
From: David Miller <david.miller@arachnetech.com>
Date: Sun, 17 Oct 2021 22:09:11 +0100
Subject: [PATCH] Improve compatibility with older Node.js versions

---
 docs/ReleaseNotes.md | 3 +++
 index.js             | 2 +-
 package.json         | 2 +-
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/docs/ReleaseNotes.md b/docs/ReleaseNotes.md
index b6238ea..3ddc3bb 100644
--- a/docs/ReleaseNotes.md
+++ b/docs/ReleaseNotes.md
@@ -5,6 +5,9 @@
 
 # Homebridge MQTT-Thing: Release Notes
 
+### Version 1.1.32
++ Improve compatibility with older Node.js versions
+
 ### Version 1.1.31
 + Improve null handling (multicharacteristic) (thanks, Jakub Samek)
 + Added optimizePublishing option
diff --git a/index.js b/index.js
index 32dd249..751fcc9 100644
--- a/index.js
+++ b/index.js
@@ -1279,7 +1279,7 @@ function makeThing( log, accessoryConfig, api ) {
                 // MQTT set (Homekit get)
                 if( getTopic ) {
                     mqttSubscribe( getTopic, property, function( topic, message ) {
-                        let data = message?.toString() ?? '';
+                        let data = message ? message.toString() : '';
                         let newState = mqttToHomekit[ data ];
                         if( newState !== undefined && ( eventOnly || state[ property ] != newState ) ) {
                             if( config.logMqtt ) {
diff --git a/package.json b/package.json
index 29d4f72..7bbc754 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "homebridge-mqttthing",
-  "version": "1.1.31",
+  "version": "1.1.32",
   "description": "Homebridge plugin supporting various services over MQTT",
   "main": "index.js",
   "scripts": {