diff --git a/boards/px4/fmu-v5x/default.px4board b/boards/px4/fmu-v5x/default.px4board
index 8ba73bcdcc..51f550c233 100644
--- a/boards/px4/fmu-v5x/default.px4board
+++ b/boards/px4/fmu-v5x/default.px4board
@@ -111,3 +111,4 @@ CONFIG_SYSTEMCMDS_UORB=y
 CONFIG_SYSTEMCMDS_USB_CONNECTED=y
 CONFIG_SYSTEMCMDS_VER=y
 CONFIG_SYSTEMCMDS_WORK_QUEUE=y
+CONFIG_MAVLINK_DIALECT="development"