Error iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)

Was building a RPi3 machine and got the following error after an update.

iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)

1	iptables v1.4.21: can't initialize iptables table `nat': Table does not exist (do you need to insmod?)

Turns out nothing to worry about, just reboot the Pi.

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