enchanted blade spell

[Ahku]

Hello all,

i have a question about the 'enchanted blade' that gets created with the spell of the same name.

feat: martial weapon
longsword (no physical damage)
Damage Bonus: 1d8 magical
enchantment bonus: +2

so the blade as created does: 1d8+2 damage...is this affected by a critical hit as well?

on a crit would it be 1d8+2 x2?

thanks!