ALTER ROLE role-name-with-hyphen

[Tom Copeland <tom@xxxxxxxxxxxxx>]

Hi all -

This is probably a new bee question... but, how do I change the  
password of a role that has a hyphen in the name?

======================
$ createuser --no-superuser --createdb --no-createrole foo-bar
$ psql
Welcome to psql 8.3.0, the PostgreSQL interactive terminal.

Type:  \copyright for distribution terms
       \h for help with SQL commands
       \? for help with psql commands
       \g or terminate with semicolon to execute query
       \q to quit

postgres=# ALTER USER foo-bar WITH ENCRYPTED PASSWORD 'foo-bar';
ERROR:  syntax error at or near "-"
LINE 1: ALTER USER foo-bar WITH ENCRYPTED PASSWORD 'foo-bar';
                      ^
======================

So I can create the role but I can't figure out how to modify it.   
I've tried a variety of quoting and backslashing and such, but no luck  
yet.... any ideas?

Thanks,

Tom