diff --git a/msg/sensor_accel.msg b/msg/sensor_accel.msg
index d6d957cb8f..ee2d47bed0 100644
--- a/msg/sensor_accel.msg
+++ b/msg/sensor_accel.msg
@@ -15,4 +15,4 @@ int16 y_raw
 int16 z_raw
 int16 temperature_raw
 
-uint32 device_id	# unique device ID for the sensor that does not change between power cycles
+int32 device_id	# unique device ID for the sensor that does not change between power cycles
diff --git a/msg/sensor_baro.msg b/msg/sensor_baro.msg
index 2d0d0528b7..f8ff76bef5 100644
--- a/msg/sensor_baro.msg
+++ b/msg/sensor_baro.msg
@@ -2,4 +2,4 @@ float32 pressure	# static pressure measurement in millibar
 float32 altitude	# ISA pressure altitude in meters
 float32 temperature	# static temperature measurement in deg C
 uint64 error_count
-uint32 device_id	# Sensor ID that must be unique for each baro sensor and must not change
+int32 device_id	# Sensor ID that must be unique for each baro sensor and must not change
diff --git a/msg/sensor_gyro.msg b/msg/sensor_gyro.msg
index 8b0b72f12d..d2e62c11e2 100644
--- a/msg/sensor_gyro.msg
+++ b/msg/sensor_gyro.msg
@@ -15,4 +15,4 @@ int16 y_raw
 int16 z_raw
 int16 temperature_raw
 
-uint32 device_id	# unique device ID for the sensor that does not change between power cycles
+int32 device_id	# unique device ID for the sensor that does not change between power cycles