Joining two tables in Rails ,which was mentioned as has_one: ".. ",class_name:"..."

class Transport::Vehicle < ApplicationRecord
    has_one :driver, class_name: "Admin", foreign_key: "driver_id"
end 

Transport::Vehicle.joins(:driver) 

produces the following SQL query

SELECT  "transport_vehicles".* FROM "transport_vehicles" INNER JOIN "admins" ON "admins"."driver_id" = "transport_vehicles"."id" AND "admins"."deleted_at" IS NULL LIMIT $1

But it should be

SELECT  "transport_vehicles".* FROM "transport_vehicles" INNER JOIN "admins" ON "admins"."id" = "transport_vehicles"."id" AND "admins"."deleted_at" IS NULL LIMIT $1

How can i get admin.id instead of admins.driver_id ??