diff --git a/alpine-install-on-disk.sh b/alpine-install-on-disk.sh
index a0b7cd3..3a48c40 100755
--- a/alpine-install-on-disk.sh
+++ b/alpine-install-on-disk.sh
@@ -83,6 +83,7 @@ run_root rc-update add udev-trigger
 run_root rc-update add sshd
 run_root rc-update add networking
 run_root rc-update add hostname
+run_root rc-update add sysctl
 run_root sed -i 's/root:!::0:::::/root:*::0:::::/' /etc/shadow
 
 sudo tee "$rootfs_tmpdir/etc/network/interfaces" <<EOF