[C#][mono] Проблемы с динамической загрузкой

namespace Sample {
    public interface IModule {
        string name ();
    }
}

namespace Sample {
    public class Module: IModule {
        public string name () {
            return "sample!";
        }
    }
}

using System;
using System.Reflection;

namespace Sample {
    public class Loader {
        static void Main () {
            var module = Assembly.Load ("module.so");
            var types  = module.GetTypes ();
            
            foreach (Type t in types) {
                if (t.GetInterface ("IModule") != null) {
                    var inst = (IModule) Activator.CreateInstance (t, null);
                    Console.WriteLine (inst.name ());
                }
            }
        }
    }
}

tokamak% gmcs interface.cs loader.cs -out:loader.exe
tokamak% gmcs interface.cs module.cs -t:library -out:module.so

tokamak% mono loader.exe 

Unhandled Exception: System.IO.FileNotFoundException: Could not load file or assembly 'module.so' or one of its dependencies. The system cannot find the file specified.
File name: 'module.so'
  at System.AppDomain.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity, Boolean refonly) [0x00000] in <filename unknown>:0 
  at System.AppDomain.Load (System.String assemblyString) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.AppDomain:Load (string)
  at System.Reflection.Assembly.Load (System.String assemblyString) [0x00000] in <filename unknown>:0 
  at Sample.Loader.Main () [0x00000] in <filename unknown>:0