diff --git a/conf/machine/include/obmc-bsp-common.inc b/conf/machine/include/obmc-bsp-common.inc
index 7162b5d..2026260 100644
--- a/conf/machine/include/obmc-bsp-common.inc
+++ b/conf/machine/include/obmc-bsp-common.inc
@@ -11,6 +11,6 @@
         'mtd-static mtd-static-tar mtd-static-alltar', d)}"
 
 INITRAMFS_CTYPE ?= "lzma"
-INITRAMFS_FSTYPES += "cpio.${INITRAMFS_CTYPE}"
-INITRAMFS_IMAGE ?= "obmc-phosphor-initramfs"
-INITRAMFS_IMAGE_df-obmc-ubi-fs ?= ""
+INITRAMFS_FSTYPES = "cpio.${INITRAMFS_CTYPE}"
+INITRAMFS_IMAGE = "obmc-phosphor-initramfs"
+INITRAMFS_IMAGE_df-obmc-ubi-fs = ""