diff --git a/LibreHardwareMonitorLib/Hardware/Sensor.cs b/LibreHardwareMonitorLib/Hardware/Sensor.cs
index 10071c6..2951d58 100644
--- a/LibreHardwareMonitorLib/Hardware/Sensor.cs
+++ b/LibreHardwareMonitorLib/Hardware/Sensor.cs
@@ -79,10 +79,7 @@ internal class Sensor : ISensor
         get { return _hardware; }
     }
 
-    public Identifier Identifier
-    {
-        get { return new Identifier(_hardware.Identifier, SensorType.ToString().ToLowerInvariant(), Index.ToString(CultureInfo.InvariantCulture)); }
-    }
+    public Identifier Identifier => field ??= new Identifier(_hardware.Identifier, SensorType.ToString().ToLowerInvariant(), Index.ToString(CultureInfo.InvariantCulture));
 
     public int Index { get; }