diff --git a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/mboxd/mboxd.bbappend b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/mboxd/mboxd.bbappend
index 8b6248a..4139f5e 100644
--- a/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/mboxd/mboxd.bbappend
+++ b/meta-openbmc-machines/meta-openpower/meta-ibm/meta-witherspoon/recipes-phosphor/mboxd/mboxd.bbappend
@@ -1 +1,3 @@
 MBOXD_FLASH_SIZE = "64M"
+
+EXTRA_OECONF := "${@oe_filter_out('enable_virtual_pnor=no', '', d)}"