Errors and Mistakes

[Viladin]

I was looking over fighter advance talents and I noticed:
Devastating Melee Smash (Ex): Once per encounter, before making the fighter's attack roll, he may choose to add his fighter levels to damage with a melee weapon. If he misses, this attempt is wasted. This talent may be selected multiple times, each time granting one additional attempt per encounter. This talent may be selected multiple times, each time granting one additional attempt per day. Prerequisite: Melee Power
Is it one additional attempt per day or encounter or actually both?

Should be one extra attempt per encounter. I'll fix that.