diff --git a/.buildbot/openwrt/build.sh b/.buildbot/openwrt/build.sh
index 518fcf5..eb75651 100755
--- a/.buildbot/openwrt/build.sh
+++ b/.buildbot/openwrt/build.sh
@@ -51,9 +51,11 @@ echo "CONFIG_TARGET_ROOTFS_EXT4FS=n" >> .config
 
 # Setup files
 mkdir -p files/root/.ssh
+chmod 0700 files/root files/root/.ssh
 cp ${pwd}/authorized_keys files/root/.ssh/
+chmod 0400 files/root/.ssh/authorized_keys
 mkdir -p files/etc/uci-defaults
-cp ${pwd}/uci_defaults files/etc/uci-defaults/99-custom
+cp ${pwd}/defaults/* files/etc/uci-defaults
 
 PACKAGES="kmod-nf-nathelper-extra kmod-rtc-ds1307 \
 	  kmod-usb-audio kmod-usb-net-rtl8152 \
diff --git a/uci_defaults b/defaults/50-sshd
similarity index 100%
rename from uci_defaults
rename to defaults/50-sshd