diff --git a/ArduSub/GCS_Sub.cpp b/ArduSub/GCS_Sub.cpp
index 3b48e02824..9834bf71dc 100644
--- a/ArduSub/GCS_Sub.cpp
+++ b/ArduSub/GCS_Sub.cpp
@@ -20,10 +20,6 @@ void GCS_Sub::update_vehicle_sensor_status_flags()
         MAV_SYS_STATUS_SENSOR_YAW_POSITION;
 
     // first what sensors/controllers we have
-    if (AP::compass().enabled()) {
-        control_sensors_present |= MAV_SYS_STATUS_SENSOR_3D_MAG;
-        control_sensors_enabled |= MAV_SYS_STATUS_SENSOR_3D_MAG;
-    }
     if (sub.ap.depth_sensor_present) {
         control_sensors_present |= MAV_SYS_STATUS_SENSOR_ABSOLUTE_PRESSURE;
         control_sensors_enabled |= MAV_SYS_STATUS_SENSOR_ABSOLUTE_PRESSURE;
@@ -65,11 +61,6 @@ void GCS_Sub::update_vehicle_sensor_status_flags()
     if (sub.sensor_health.depth) {
         control_sensors_health |= MAV_SYS_STATUS_SENSOR_ABSOLUTE_PRESSURE;
     }
-    AP_AHRS &ahrs = AP::ahrs();
-    const Compass &compass = AP::compass();
-    if (AP::compass().enabled() && compass.healthy() && ahrs.use_compass()) {
-        control_sensors_health |= MAV_SYS_STATUS_SENSOR_3D_MAG;
-    }
     if (gps.is_healthy()) {
         control_sensors_health |= MAV_SYS_STATUS_SENSOR_GPS;
     }