Devws CakePHP DB Migrations

I know this isn't the home anymore, but I can't get a beta account for codaset.
There seems to be an issue with a migration that has a column named "group"

Here is my migration code:

UP:
add_field:

attachments:
  group:
    type: string

DOWN:
drop_field:

attachments: group

And here is the SQL error:

[1254764276] Add Group To Attachments ...

   > adding column 'group' on 'attachments'

_doQuery: [Error message: Could not execute statement] [Last executed query: ALTER TABLE attachments ADD group VARCHAR(255) DEFAULT NULL] [Native code: 1064] [Native message: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'group VARCHAR(255) DEFAULT NULL' at line 1]