diff --git a/Makefile b/Makefile
index a3b4351..00de4f4 100644
--- a/Makefile
+++ b/Makefile
@@ -75,6 +75,7 @@ images/firmware.img: images/sdcard.img
 output/update.tar.zstd: \
 		images/rootfs.squashfs \
 		images/firmware.img \
+		install-update.sh \
 		.host-tools \
 		.prepared
 	./build-update.sh
diff --git a/build-kernel.sh b/build-kernel.sh
index 8866275..2836cc1 100755
--- a/build-kernel.sh
+++ b/build-kernel.sh
@@ -15,6 +15,7 @@ cd linux
     ../linux.config
 make -C /usr/src/linux O=${PWD} olddefconfig
 make -j$(nproc)
+touch arch/arm64/boot/Image.gz
 kver=$(make -s kernelversion)
 make modules_install INSTALL_MOD_PATH=/mnt/gentoo/usr
 cd -