Error searching records by id with friendly_id

I do this in my edit, update, destroy functions

@post = Post.friendly.find(params[:id])
if @post.user_id == current_user.id

Is there any way to optimize and make a single function, before I did it this way:

before_action :set_user_post, only: [:edit, :update, :destroy]

private
def set_user_post
  @post = current_user.posts.find_by(id: params[:id])
end

But add the friendly_id gem and modify it like this:

private
def set_user_post
  @post = current_user.posts.friendly.find(id: params[:id])
end

But it gives me an error.