diff --git a/homeassistant/components/matter/strings.json b/homeassistant/components/matter/strings.json
index 1404d0a9076..c82f46ef085 100644
--- a/homeassistant/components/matter/strings.json
+++ b/homeassistant/components/matter/strings.json
@@ -160,7 +160,7 @@
         "name": "On/Off transition time"
       },
       "altitude": {
-        "name": "Altitude above Sea Level"
+        "name": "Altitude above sea level"
       },
       "temperature_offset": {
         "name": "Temperature offset"
diff --git a/tests/components/matter/snapshots/test_number.ambr b/tests/components/matter/snapshots/test_number.ambr
index d777b9d48d0..e1ee782cd3b 100644
--- a/tests/components/matter/snapshots/test_number.ambr
+++ b/tests/components/matter/snapshots/test_number.ambr
@@ -483,7 +483,7 @@
     }),
     'original_device_class': <NumberDeviceClass.DISTANCE: 'distance'>,
     'original_icon': None,
-    'original_name': 'Altitude above Sea Level',
+    'original_name': 'Altitude above sea level',
     'platform': 'matter',
     'previous_unique_id': None,
     'supported_features': 0,
@@ -496,7 +496,7 @@
   StateSnapshot({
     'attributes': ReadOnlyDict({
       'device_class': 'distance',
-      'friendly_name': 'Eve Weather Altitude above Sea Level',
+      'friendly_name': 'Eve Weather Altitude above sea level',
       'max': 9000,
       'min': 0,
       'mode': <NumberMode.BOX: 'box'>,