From 51b520db0cbd06133a408871a74296cd4ddb254f Mon Sep 17 00:00:00 2001
From: Marcel van der Veldt <m.vanderveldt@outlook.com>
Date: Sun, 25 Aug 2024 15:06:16 +0200
Subject: [PATCH] Prevent KeyError when Matter device sends invalid value for
 StartUpOnOff (#124280)

---
 homeassistant/components/matter/select.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/homeassistant/components/matter/select.py b/homeassistant/components/matter/select.py
index 4a9ef3780d1..b46cad53123 100644
--- a/homeassistant/components/matter/select.py
+++ b/homeassistant/components/matter/select.py
@@ -229,12 +229,12 @@ DISCOVERY_SCHEMAS = [
             entity_category=EntityCategory.CONFIG,
             translation_key="startup_on_off",
             options=["On", "Off", "Toggle", "Previous"],
-            measurement_to_ha=lambda x: {
+            measurement_to_ha=lambda x: {  # pylint: disable=unnecessary-lambda
                 0: "Off",
                 1: "On",
                 2: "Toggle",
                 None: "Previous",
-            }[x],
+            }.get(x),
             ha_to_native_value=lambda x: {
                 "Off": 0,
                 "On": 1,