diff --git a/libraries/AP_Airspeed/Airspeed_Calibration.cpp b/libraries/AP_Airspeed/Airspeed_Calibration.cpp
index 9c34146a7d..393f764ea7 100644
--- a/libraries/AP_Airspeed/Airspeed_Calibration.cpp
+++ b/libraries/AP_Airspeed/Airspeed_Calibration.cpp
@@ -166,18 +166,18 @@ void AP_Airspeed::update_calibration(const Vector3f &vground, int16_t max_airspe
 void AP_Airspeed::send_airspeed_calibration(const Vector3f &vground)
 {
     const mavlink_airspeed_autocal_t packet{
-        vground.x,
-        vground.y,
-        vground.z,
-        get_differential_pressure(primary),
-        AP::baro().get_EAS2TAS(),
-        param[primary].ratio.get(),
-        state[primary].calibration.state.x,
-        state[primary].calibration.state.y,
-        state[primary].calibration.state.z,
-        state[primary].calibration.P.a.x,
-        state[primary].calibration.P.b.y,
-        state[primary].calibration.P.c.z
+        vx: vground.x,
+        vy: vground.y,
+        vz: vground.z,
+        diff_pressure: get_differential_pressure(primary),
+        EAS2TAS: AP::baro().get_EAS2TAS(),
+        ratio: param[primary].ratio.get(),
+        state_x: state[primary].calibration.state.x,
+        state_y: state[primary].calibration.state.y,
+        state_z: state[primary].calibration.state.z,
+        Pax: state[primary].calibration.P.a.x,
+        Pby: state[primary].calibration.P.b.y,
+        Pcz: state[primary].calibration.P.c.z
     };
     gcs().send_to_active_channels(MAVLINK_MSG_ID_AIRSPEED_AUTOCAL,
                                   (const char *)&packet);