Can't create immutable type in template

[Nick Gurrola]

import std.stdio;

void main()
{
        writeln(typeid(Test!int));
}
template Test(T...)
{
        alias immutable(T[0]) Test;
}


This prints "int" instead of "immutable(int)" like I would 
expect. Is this a bug, or is that what is supposed to happen?