diff --git a/test/README b/test/README
index c385b1d..2beeb78 100644
--- a/test/README
+++ b/test/README
@@ -65,7 +65,11 @@ How to test
 -----------
 
 Build XSP and start the server as usual.
-cd to xsp/test and run ServiceClient.exe.
+cd to xsp/test and run ServiceClient.exe passing the hostname and port:
+
+For example:
+
+	mono ServiceClient.exe localhost:8080
 
 After execution, you should see the files trace.log and dump.log in
 xsp/server/test with the traces of the requests. You can try to add and remove
diff --git a/test/ServiceClient.cs b/test/ServiceClient.cs
index 88a41f3..ed754c7 100644
--- a/test/ServiceClient.cs
+++ b/test/ServiceClient.cs
@@ -4,10 +4,12 @@ namespace WebServiceTest
 {
 	public class ServiceClientTest
 	{
-		static void Main() 
+		static void Main(string [] args) 
 		{
 			Console.WriteLine ("Testing simple web service");
 			TestService s = new TestService ();
+			if (args.Length>0)
+				s.Url = "http://" + args [0] + "/TestService.asmx";
 			for (int n=0; n<10; n++)
 			{
 				string res = s.Echo ("hola");