Error generating models from db when a table name is a reserved word in PostgreSQL

I'm getting an exception when generating models from db because I have a table named 'role' which is a reserved word, as you can see at http://www.postgresql.org/docs/8.1/static/sql-keywords-appendix.html

I have a table named 'role_permission' which has a foreign key pointing to table 'role'. When Doctrine tries to find the related tables using 'Doctrine_Import_Pgsql::listTableRelations()', the executed SQL returns:
FOREIGN KEY (role_id) REFERENCES "role"(role_id) ON DELETE CASCADE
with the table name role quoted as it is a reserved word.

My workaround is to change Doctrine_Import_Pgsql line 281 from:

$relations[] = array('table' => $values[2],

to:

$relations[] = array('table' => (strpos($values[2],'"') === 0)?substr($values[2],1,-1):$values[2],