diff --git a/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend b/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend
new file mode 100644
index 0000000..aa57bbf
--- /dev/null
+++ b/meta-romulus/recipes-phosphor/images/obmc-phosphor-image.bbappend
@@ -0,0 +1 @@
+OBMC_IMAGE_EXTRA_INSTALL_append = " mboxd"
diff --git a/meta-romulus/recipes-phosphor/mboxd/mboxd.bbappend b/meta-romulus/recipes-phosphor/mboxd/mboxd.bbappend
new file mode 100644
index 0000000..8b6248a
--- /dev/null
+++ b/meta-romulus/recipes-phosphor/mboxd/mboxd.bbappend
@@ -0,0 +1 @@
+MBOXD_FLASH_SIZE = "64M"