From 63be6852018d600ca3b8a2e5d19c16aea33ff7c4 Mon Sep 17 00:00:00 2001
From: Koen Kanters <koenkanters94@gmail.com>
Date: Thu, 27 Feb 2020 20:33:04 +0100
Subject: [PATCH] Fix OTA update start on check with / as base_topic prefix.
 #3010

---
 lib/extension/otaUpdate.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/extension/otaUpdate.js b/lib/extension/otaUpdate.js
index 3c19c0fb..6b70d8d4 100644
--- a/lib/extension/otaUpdate.js
+++ b/lib/extension/otaUpdate.js
@@ -75,7 +75,7 @@ class OTAUpdate extends BaseExtension {
         }
         this.inProgress.add(device.device.ieeeAddr);
 
-        const type = topic.split('/')[3];
+        const type = topic.substring(settings.get().mqtt.base_topic.length).split('/')[3];
         if (type === 'check') {
             const message = `Checking if update available for '${device.name}'`;
             logger.info(message);