-@hourly root [ -x /sbin/iptables-save ] && umask 0177; iptables-save | sed -e 's/\[.*//' -e 's/^#.*//' | sha256sum > /var/run/iptables-online.checksum
-@hourly root [ -x /sbin/ip6tables-save ] && umask 0177; ip6tables-save | sed -e 's/\[.*//' -e 's/^#.*//' | sha256sum > /var/run/ip6tables-online.checksum
+@hourly root if [ -x /sbin/iptables-save ]; then umask 0177 && /sbin/iptables-save | sed -e 's/\[.*//' -e 's/^#.*//' | sha256sum > /var/run/iptables-online.checksum; fi
+@hourly root if [ -x /sbin/ip6tables-save ]; then umask 0177 && /sbin/ip6tables-save | sed -e 's/\[.*//' -e 's/^#.*//' | sha256sum > /var/run/ip6tables-online.checksum; fi