diff --git a/target/linux/qoriq/base-files/etc/board.d/05_compat-version b/target/linux/qoriq/base-files/etc/board.d/05_compat-version
new file mode 100644
index 00000000000..2036fbcc954
--- /dev/null
+++ b/target/linux/qoriq/base-files/etc/board.d/05_compat-version
@@ -0,0 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+. /lib/functions.sh
+. /lib/functions/uci-defaults.sh
+
+board_config_update
+
+case "$(board_name)" in
+	watchguard,firebox-m300)
+		ucidef_set_compat_version "1.1"
+		;;
+esac
+
+board_config_flush
+
+exit 0