diff --git a/src/modules/sensors/sensors_init.cpp b/src/modules/sensors/sensors_init.cpp
index 447d569d50..93742333bd 100644
--- a/src/modules/sensors/sensors_init.cpp
+++ b/src/modules/sensors/sensors_init.cpp
@@ -66,12 +66,6 @@ sensors_init(void)
 
 #else
 
-/* oddly, ERROR is not defined for c++ */
-#ifdef ERROR
-# undef ERROR
-#endif
-static const int ERROR = -1;
-
 /**
  * Do accel-related initialisation.
  */
@@ -126,7 +120,7 @@ accel_init()
 
 	if (!h_accel.isValid()) {
 		warnx("FATAL: no accelerometer found: %s (%d)", ACCEL0_DEVICE_PATH, h_accel.getError());
-		return ERROR;
+		return PX4_ERROR;
 
 	} else {
 
@@ -148,7 +142,7 @@ gyro_init()
 
 	if (!h_gyro.isValid()) {
 		warnx("FATAL: no gyro found: %s (%d)", GYRO0_DEVICE_PATH, h_gyro.getError());
-		return ERROR;
+		return PX4_ERROR;
 
 	}
 
@@ -171,7 +165,7 @@ mag_init()
 
 	if (!h_mag.isValid()) {
 		warnx("FATAL: no magnetometer found: %s (%d)", MAG0_DEVICE_PATH, h_mag.getError());
-		return ERROR;
+		return PX4_ERROR;
 	}
 
 	/* try different mag sampling rates */
@@ -193,7 +187,7 @@ mag_init()
 
 		} else {
 			warnx("FATAL: mag sampling rate could not be set");
-			return ERROR;
+			return PX4_ERROR;
 		}
 	}
 
@@ -208,7 +202,7 @@ baro_init()
 
 	if (!h_baro.isValid()) {
 		warnx("FATAL: No barometer found: %s (%d)", BARO0_DEVICE_PATH, h_baro.getError());
-		return ERROR;
+		return PX4_ERROR;
 	}
 
 	/* set the driver to poll at 150Hz */