diff --git a/conf/layer.conf b/conf/layer.conf
index 5e1f7f2..59b9e0c 100644
--- a/conf/layer.conf
+++ b/conf/layer.conf
@@ -17,3 +17,6 @@ LAYERDEPENDS_lts-linux-firmware-mixin = " \
 
 # https://git.openembedded.org/openembedded-core/commit/?id=2b75c7ba5e3aa6fc57d7b4afe59e2277b4d87de1
 firmwaredir = "${nonarch_base_libdir}/firmware"
+
+# DEFAULT_PREFERENCE for linux-firmware provided by the layer
+LTS_LINUX_FIRMWARE_MIXIN_DEFAULT_PREFERENCE ?= "-1"