diff --git a/platformio.ini b/platformio.ini
index dcb8698..205ea9e 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -12,7 +12,7 @@
 platform = espressif8266
 board = d1_mini
 framework = arduino
-build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY -D BMP280
+build_flags = -D PIO_FRAMEWORK_ARDUINO_LWIP2_LOW_MEMORY -DBMP280
 ; build_flag needs define the Bosch sensor...
 ; -D BMP280
 ;or
diff --git a/src/main.cpp b/src/main.cpp
index c6ce8aa..c0bad67 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -224,8 +224,17 @@ void onHomieEvent(const HomieEvent &event)
   case HomieEventType::MQTT_READY:
     mConnected=true;
     if (mFailedI2Cinitialization) {
-      log(MQTT_LEVEL_DEBUG, F("Could not find a valid BME680 sensor, check wiring or "
-                          "try a different address!"), MQTT_LOG_I2CINIT);
+      log(MQTT_LEVEL_DEBUG, 
+#ifdef BME680
+    "Could not find a valid BME680 sensor, check wiring or try a different address!"
+#else
+#ifdef BMP280
+    "Could not find a valid BMP280 sensor, check wiring or try a different address!"
+#else
+  "no I2C sensor defined"
+#endif
+#endif
+      , MQTT_LOG_I2CINIT);
     } else {
       log(MQTT_LEVEL_INFO, F("BME680 sensor found"), MQTT_LOG_I2CINIT);
     }