Cannot modify association 'User#roles' because the source reflection class 'Role' is associated to 'Profile' via :has_many

I have three models, a user, a profile and a role, where I'm trying to attach multiple roles to a user through profile.

# user.rb
class User < ActiveRecord::Base
  has_one :profile, dependent: :destroy
  has_many :roles, through: :profile
  has_many :interests, through: :profile
  has_many :industries, through: :profile
end

# profile.rb
class Profile < ActiveRecord::Base
  has_one :user, dependent: :destroy
  has_many :roles
  has_many :interests
  has_many :industries
end

# role.rb
class Role < ActiveRecord::Base
  has_many :profiles
  has_many :users, :through => :profiles
  has_many :users
end

I'm trying to use the following in edit.html.erb (simple_form_for)

<%= f.association :roles,
                   as: :check_boxes,
                   label_method: :name,
                   value_method: :id,
                   label: 'Roles' %>

With the following params

params.require(:user).permit([:email, :first_name, :last_name, :admin, :password, role_ids: [] ])

My edit/update method:

  # GET /users/1/edit
  def edit
    @user.build_profile if @user.profile.nil?
  end

  def update
    respond_to do |format|
      if @user.update(user_params)
        format.html { redirect_to @user, notice: 'User was successfully updated.' }
        format.json { render :show, status: :ok, location: @user }
      else
        format.html { render :edit }
        format.json { render json: @user.errors, status: :unprocessable_entity }
      end
    end
  end

Gives me the following error message

Cannot modify association 'User#roles' because the source reflection class 'Role' is associated to 'Profile' via :has_many.

I've been looking at the problem for hours, but I can't seem to find the mistake.