Query with relation

Heyyo,

I have the User

public function buildings()
    {
        return $this->hasMany('MyApp\Building');
    }

And Buildings

public function user()
    {
        return $this->belongsTo('MyApp\User');
    }

Now I want to paginate the Buildings but it don't work...

public function index()
    {
        $buildings = Building::whereHas('user', function ($query) {
            $query->where('user_id','=',Auth::id());
        })->paginate(15);

        return BuildingResource::collection($buildings);
    }

Does someone see my mistake?