Access to the attached property displayed through the private field from the Linq-to-MongoDB request

Question

I am requesting a collection using Linq-MongoDB using the standard C # driver:

from n in db.GetCollection<EntityWrapper<Customer>>("Customers").AsQueryable()
where n.Entity.Names.Contains(name)
select n.Entity;

This throws an exception:

Class Customer does not have a member called names.

As you can see below, I am wrapping my objects to provide additional metadata without polluting my objects.

public class EntityWrapper<TEntity>
{
    public TEntity Entity { get; set; }
    public string CreatedBy { get; set; }
}

public class Customer : Entity
{
     private List<string> names = new List<string>();
     public IEnumerable<string> Names { get { return names; } }

     public void AddName(string name)
     {
         names.Add(name);
     }
}

I displayed a personal field:

BsonClassMap.RegisterClassMap<Customer>(n =>
{
    n.AutoMap();
    n.MapField("names");
});

I found the data in the database correct.

When I delete a private field and change the property Namesin List<string>, the request is executed normally. Obviously, I do not want to go this route, because I would jeopardize encapsulation.

Most simple queries work fine, like

from n in db.GetCollection<EntityWrapper<Customer>>("Customers").AsQueryable()
where n.Entity.Priority > 3
select n.Entity;

UPDATE

I found out a hack that makes the request work:

public IEnumerable<string> Names
{
    get
    {
        return names;
    }
    private set { } // The LINQ provider expects the property to have a setter
}

However, this is not close to acceptable.