diff --git a/ArduSub/GCS_Mavlink.cpp b/ArduSub/GCS_Mavlink.cpp
index 3354ce60e3..9bffd5fe9a 100644
--- a/ArduSub/GCS_Mavlink.cpp
+++ b/ArduSub/GCS_Mavlink.cpp
@@ -382,7 +382,7 @@ static const ap_message STREAM_EXTRA3_msgs[] = {
 #endif
     MSG_BATTERY2,
     MSG_BATTERY_STATUS,
-    MSG_MOUNT_STATUS,
+    MSG_GIMBAL_DEVICE_ATTITUDE_STATUS,
     MSG_OPTICAL_FLOW,
     MSG_MAG_CAL_REPORT,
     MSG_MAG_CAL_PROGRESS,