diff --git a/boards/px4/fmu-v6x/default.px4board b/boards/px4/fmu-v6x/default.px4board
index 4e21f0fd0870..f197a254a09a 100644
--- a/boards/px4/fmu-v6x/default.px4board
+++ b/boards/px4/fmu-v6x/default.px4board
@@ -66,6 +66,7 @@ CONFIG_MODULES_LOGGER=y
 CONFIG_MODULES_MAG_BIAS_ESTIMATOR=y
 CONFIG_MODULES_MANUAL_CONTROL=y
 CONFIG_MODULES_MAVLINK=y
+CONFIG_MAVLINK_DIALECT="development"
 CONFIG_MODULES_MC_ATT_CONTROL=y
 CONFIG_MODULES_MC_AUTOTUNE_ATTITUDE_CONTROL=y
 CONFIG_MODULES_MC_HOVER_THRUST_ESTIMATOR=y