diff --git a/libraries/GCS_MAVLink/message_definitions/common.xml b/libraries/GCS_MAVLink/message_definitions/common.xml
index f168c8ccd8..a0aee14429 100644
--- a/libraries/GCS_MAVLink/message_definitions/common.xml
+++ b/libraries/GCS_MAVLink/message_definitions/common.xml
@@ -2511,6 +2511,13 @@
Number of 4x4 terrain blocks waiting to be received or read from disk
Number of 4x4 terrain blocks in memory
+
+ Barometer readings for 2nd barometer
+ Timestamp (milliseconds since system boot)
+ Absolute pressure (hectopascal)
+ Differential pressure 1 (hectopascal)
+ Temperature measurement (0.01 degrees celsius)
+
Battery information
Battery ID