diff --git a/WifiControlSensor/BMP180.h b/WifiControlSensor/BMP180.h
index 1222735..42ee435 100644
--- a/WifiControlSensor/BMP180.h
+++ b/WifiControlSensor/BMP180.h
@@ -13,6 +13,6 @@ bool BMP180IsConnected();
 #else //CONFIG_ENABLE_BMP80
 int BMP180GetTemperature(double &t){return -1;};
 int BMP180GetTempAndPressure(double &t, double &p){return -1;};
-int BMP180Setup(int , int ){SKETCH_DEBUG_PRINTLN("BMP180 is disabled at build time"); return 0;};
+int BMP180Setup(int , int ){SKETCH_DEBUG_PRINTLN("BMP180 is disabled at build time"); return -1;};
 bool BMP180IsConnected(){return false;};
 #endif