Model creates two primary keys with same column using Model.sync() function #484

I'm trying to generate my MySQL database tables from my node-orm models. Here's what I got:

var db = require('orm').db;

var User = db.define('user', {
    name: String,
    email: String,
    token: String
});

db.drop(function(){
    User.sync(function(){
    });
}); 

I let the User.sync() generates the User table in my database, I had successfully done this before but now my tables have two primary keys with the same column as you can see on the image:

I've been getting "ER_OPERAND_COLUMNS: Operand should contain 1 column(s)" error everytime I want to add and instance of User to another model instance.

Does anyone know what can be causing this?