How do I make units build a certain way?

If I want a unit to build like a Peasant or Acolyte, how do I do that?

I based it on the Peasent/Acolyte, and it didn't work, then I gave them Build (Human)/Build (Undead). Still didn't work.

Build style is based on race, not anything else.

If the worker's race is 'Human' it will build like a Peasant.
Race 'Orc' builds like a Peon.
Race 'Undead' builds like an Acolyte
Race 'Night Elf' builds like a Wisp (Same as Peon, only if an Ancient is being built, worker vanishes after construction.)

Other races, such as Naga and Creep, work the same as Human i -think- not certain about that.

Naga's worker do as if they were orcs

If you use a human race worker, it must have the Repair ability to build.

Oh OK thanks alot.