# If I have expertise in a skill and I take Aereni Expertise over the Elf Weapon Training, does that mean that I would have quadruple proficencey bonus? [duplicate]

I'm making a new character and she is a Wood Elf rogue. The rouge gets to choose two skills that he is proficient in at level one and give themselves expertise in it instead. A Wood Elf has access to the Aereni Expertise trait which is described like this, "Choose one skill or tool proficiency. Your proficiency bonus is doubled for ability checks that use it." Does that mean if I choose perception (A skill that I already have expertise in.) would I then get quadruple the bonus?