diff --git a/stempayload/Payload_BME280_MPU6050_XS/Payload_BME280_MPU6050_XS.ino b/stempayload/Payload_BME280_MPU6050_XS/Payload_BME280_MPU6050_XS.ino
index 7aa80ad7..d7070ce5 100644
--- a/stempayload/Payload_BME280_MPU6050_XS/Payload_BME280_MPU6050_XS.ino
+++ b/stempayload/Payload_BME280_MPU6050_XS/Payload_BME280_MPU6050_XS.ino
@@ -438,7 +438,7 @@ void led_set(int ledPin, bool state)
   digitalWrite(ledPin, state);   
 #endif  
 
-#if defined ARDUINO_ARCH_RP2040 
+#ifdef ARDUINO_ARCH_RP2040 
   if (ledPin == greenLED)
     digitalWrite(19, state);
   else if (ledPin == blueLED)