FreeBSD 9 + pf + nat

[bsdperson]

I previously had a line in pf.conf which read:

nat on $ext_if from $int_if:network to any -> ($ext_if)

That doesn't work any more and according to the dox I need a nat-to in the rule set. My current attempt is:

pass out on $ext_if from any to any nat-to ($ext_if)

I tried lots of different variants but they all give me syntax error. What do I do now?

[bsdperson]

Got it sorted, the proper way seems to be:

nat on egress from (self) to any -> ($ext_if)