diff --git a/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend b/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
index 6d7ae27..7b49ba1 100644
--- a/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
+++ b/meta-ast2400/recipes-kernel/linux/linux-obmc_%.bbappend
@@ -1,2 +1,2 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
-SRC_URI += "file://defconfig"
+FILESEXTRAPATHS_prepend_ast2400 := "${THISDIR}/${PN}:"
+SRC_URI_append_ast2400 = " file://defconfig"