diff --git a/libraries/GCS_MAVLink/GCS.h b/libraries/GCS_MAVLink/GCS.h
index 083714a5b6..211bda9342 100644
--- a/libraries/GCS_MAVLink/GCS.h
+++ b/libraries/GCS_MAVLink/GCS.h
@@ -61,6 +61,8 @@ enum ap_message {
     MSG_MOUNT_STATUS,
     MSG_OPTICAL_FLOW,
     MSG_GIMBAL_REPORT,
+    MSG_MAG_CAL_PROGRESS,
+    MSG_MAG_CAL_REPORT,
     MSG_EKF_STATUS_REPORT,
     MSG_LOCAL_POSITION,
     MSG_PID_TUNING,