diff --git a/dynamic-layers/rk-rauc-demo/recipes-core/rauc/rauc-conf.bbappend b/dynamic-layers/rk-rauc-demo/recipes-core/rauc/rauc-conf.bbappend
index e19db23..323b63b 100644
--- a/dynamic-layers/rk-rauc-demo/recipes-core/rauc/rauc-conf.bbappend
+++ b/dynamic-layers/rk-rauc-demo/recipes-core/rauc/rauc-conf.bbappend
@@ -1,6 +1,6 @@
 inherit rk-rauc-demo-features-check
 
-PACKAGE_ARCH = "${MACHINE_ARCH}"
+PACKAGE_ARCH:rk-rauc-demo = "${MACHINE_ARCH}"
 
 FILESEXTRAPATHS:prepend:rk-rauc-demo := "${THISDIR}/files:"