diff --git a/boards/px4/fmu-v6x/mavlink-dev.px4board b/boards/px4/fmu-v6x/mavlink-dev.px4board
new file mode 100644
index 0000000000..83cac6e17b
--- /dev/null
+++ b/boards/px4/fmu-v6x/mavlink-dev.px4board
@@ -0,0 +1 @@
+CONFIG_MAVLINK_DIALECT="development"
diff --git a/boards/px4/sitl/mavlink-dev.px4board b/boards/px4/sitl/mavlink-dev.px4board
new file mode 100644
index 0000000000..83cac6e17b
--- /dev/null
+++ b/boards/px4/sitl/mavlink-dev.px4board
@@ -0,0 +1 @@
+CONFIG_MAVLINK_DIALECT="development"