diff --git a/meta-openpower/classes/openpower-software-manager-mmc.bbclass b/meta-openpower/classes/openpower-software-manager-mmc.bbclass
index 38ae631..afbee1a 100644
--- a/meta-openpower/classes/openpower-software-manager-mmc.bbclass
+++ b/meta-openpower/classes/openpower-software-manager-mmc.bbclass
@@ -1,6 +1,6 @@
-PACKAGECONFIG_append = " mmc_layout"
+PACKAGECONFIG:append = " mmc_layout"
 
-SYSTEMD_SERVICE_${PN} += " \
+SYSTEMD_SERVICE:${PN} += " \
     obmc-flash-bios-init.service \
     obmc-flash-bios-patch.service \
     openpower-process-host-firmware.service \