diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.use b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.use
index d0bc5fda6b..0ff0a8c269 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.use
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/coreos/arm64/package.use
@@ -3,9 +3,6 @@
 # Protocol 1 not supported on arm64.
 coreos-base/coreos -etcd_protocols_1
 
-# FIXME: for debugging!!!
-sys-kernel/coreos-kernel -initramfs
-
 # FIXME: why isn't this set by default???
 sys-libs/ncurses unicode
 
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
index f83a106525..1eb2b3bef4 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/arm64_defconfig-4.2
@@ -28,6 +28,7 @@ CONFIG_CFS_BANDWIDTH=y
 CONFIG_USER_NS=y
 CONFIG_SCHED_AUTOGROUP=y
 CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE="bootengine.cpio"
 CONFIG_KALLSYMS_ALL=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_PROFILING=y