diff --git a/setup/system.sh b/setup/system.sh
index 4d1dd08e..cc8706b3 100755
--- a/setup/system.sh
+++ b/setup/system.sh
@@ -302,6 +302,7 @@ fi #NODOC
 # * The listen-on directive in named.conf.options restricts `bind9` to
 #   binding to the loopback interface instead of all interfaces.
 apt_install bind9
+touch /etc/default/bind9
 management/editconf.py /etc/default/bind9 \
 	"OPTIONS=\"-u bind -4\""
 if ! grep -q "listen-on " /etc/bind/named.conf.options; then