diff --git a/.dictionary b/.dictionary
index f99448e2d411f8f011405da26383f21fc8e009c2..d2d242c87ee2bd686fdc72319b73fbcd2dd884fb 100644
--- a/.dictionary
+++ b/.dictionary
@@ -118,6 +118,7 @@ usbhost
 util
 utils
 VIRT
+walnascar
 wchar
 wic
 WIDEC
diff --git a/conf/layer.conf b/conf/layer.conf
index b57be8ec2392278e21e588a0dc68d06735f00496..8639728ff8a2b20f074071724e3de8a00d187eaa 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -1,4 +1,4 @@
-# SPDX-FileCopyrightText: Copyright (c) 2023-2024, Linaro Limited.
+# SPDX-FileCopyrightText: Copyright (c) 2023-2025, Linaro Limited.
 #
 # SPDX-FileCopyrightText: <text>Copyright 2022-2024 Arm Limited and/or its
 # affiliates <open-source-office@arm.com></text>
@@ -18,7 +18,7 @@ BBFILES_DYNAMIC += " \
 
 BBFILE_COLLECTIONS += "meta-cassini-bsp"
 BBFILE_PATTERN_meta-cassini-bsp = "^${LAYERDIR}/"
-LAYERSERIES_COMPAT_meta-cassini-bsp = "styhead"
+LAYERSERIES_COMPAT_meta-cassini-bsp = "styhead walnascar"
 
 # Root directory for the meta-cassini-bsp/meta-arm/meta-arm-bsp
 CASSINI_ARM_BSP_DYNAMIC_DIR := "${LAYERDIR}/meta-arm/meta-arm-bsp"