diff --git a/debian-devuan-netboot.sh b/debian-devuan-netboot.sh
index 0d366fa..a9e0228 100755
--- a/debian-devuan-netboot.sh
+++ b/debian-devuan-netboot.sh
@@ -33,7 +33,7 @@ chroot ${dir} apt install  -y openssh-server rdnssd linux-image-amd64 firmware-b
 
 cp ${dir}/boot/vmlinuz-* ${kernel}
 
-echo '* * * * * root ip -o -6 addr show | grep -E -v ' lo |one' > /etc/issue'  > ${dir}/etc/cron.d/ipv6addr
+echo '* * * * * root ip -o -6 addr show | grep -E -v " lo |one" > /etc/issue'  > ${dir}/etc/cron.d/ipv6addr
 
 mkdir -p ${dir}/root/.ssh