diff --git a/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend b/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
index 8b6248a..566fc6c 100644
--- a/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
+++ b/meta-romulus/recipes-phosphor/mboxd/mboxd_%.bbappend
@@ -1 +1 @@
-MBOXD_FLASH_SIZE = "64M"
+MBOXD_FLASH_SIZE_romulus = "64M"