diff --git a/meta-phosphor/nuvoton-layer/recipes-phosphor/host/phosphor-host-postd_%.bbappend b/meta-phosphor/nuvoton-layer/recipes-phosphor/host/phosphor-host-postd_%.bbappend
new file mode 100644
index 0000000..60d5610
--- /dev/null
+++ b/meta-phosphor/nuvoton-layer/recipes-phosphor/host/phosphor-host-postd_%.bbappend
@@ -0,0 +1,3 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SNOOP_DEVICE = "npcm7xx-lpc-bpc0"