From 72691c389b2c8944ea5aaf10f02694d27bfdf681 Mon Sep 17 00:00:00 2001
From: danielpeintner <daniel.peintner@gmail.com>
Date: Mon, 25 Sep 2023 14:06:08 +0200
Subject: [PATCH] Update packages/core/src/exposed-thing.ts

Co-authored-by: Jan Romann <jan.romann@uni-bremen.de>
---
 packages/core/src/exposed-thing.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/core/src/exposed-thing.ts b/packages/core/src/exposed-thing.ts
index 8a2145960..8f5ada9c7 100644
--- a/packages/core/src/exposed-thing.ts
+++ b/packages/core/src/exposed-thing.ts
@@ -276,7 +276,7 @@ export default class ExposedThing extends TD.Thing implements WoT.ExposedThing {
         debug(`ExposedThing '${this.title}' setting property unobserve handler for '${name}'`);
 
         if (this.properties[name] != null) {
-            if (!(this.properties[name].observable === true)) {
+            if (this.properties[name].observable !== true) {
                 throw new Error(
                     `ExposedThing '${this.title}' cannot set unobserve handler for property '${name}' due to missing observable flag`
                 );