@Singleton bean can't be bound to a custom JNDI name

I have a Singleton bean like this:

@Singleton
public class DummySingleton implements Dummy {

public String getHello()

{ return "Hello Dummy!"; }

}

and an interface like this:

public interface Dummy {
public String getHello();
}

I've tried this in ejb-jar.xml (everything is packaged into an EAR file):
<?xml version="1.0" encoding="UTF-8"?>

<ejb-jar xmlns="http://java.sun.com/xml/ns/javaee" version="3.1"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_1.xsd">
<enterprise-beans>
<session>
<ejb-name>DummySingleton</ejb-name>
<ejb-class>com.tracetracker.global.aps.DummySingleton</ejb-class>
<session-type>Singleton</session-type>
<init-on-startup>false</init-on-startup>
<ejb-local-ref>
<ejb-ref-name>ejb3/hub/DummySingleton</ejb-ref-name>
<local>com.tracetracker.global.aps.Dummy</local>
</ejb-local-ref>
</session>
</enterprise-beans>
</ejb-jar>

I've also tried to add it to jboss.xml like this:
<session>
<ejb-name>DummySingleton</ejb-name>
<local-jndi>ejb3/hub/DummySingleton</local-jndi>
</session>

but no matter what I try it will not end up in JNDI bound to ejb3/hub/DummySingleton.
I can have normal session beans, and they will bind to ejb3/hub/xxxxx, but not when it's a singleton.