Wolf mount, extra bite attack?

[VerdantSF]

I was toying around with Hero Lab and noticed that my wolf mount was given an extra bite attack at -5 for my Level 9 Cavalier (Emissary, Order of the Paw). I thought animal companions never got bonus attacks for high BAB. Is my wolf getting this extra attack from another source or has Hero Lab made a mistake?

[Some Random Dood]

At lv 9 an animal companion gets multi-attack as a bonus feat. But if the animal companion only has 1 attack (such as the wolf), it instead gets an additional attack at full bab-5.

[VerdantSF]

Ah, thanks! Hero Lab is pretty solid!