concatenate SQL

I am stuck on how to include the part where the email address has brackets. Do I have to include two alias directions on the same line??

******This is the challenge. In the library database there's a patrons table listing all the users of the library. The columns are id, first_name, last_name, address, email, library_id and zip_code.

Generate a list of strings that are in the following format: Andrew Chalkley andrew@teamtreehouse.com. Concatenate the first name, last name and email address for all users.

Alias it to to_field. This will be used in the "To" field in email marketing.

Type in your command below, then press Ctrl-Enter. ****MY error code Bummer: You're missing the angle brackets around the email address.

****My current answer

SELECT first_name ||" "|| last_name||" "|| email AS to_field FROM patrons;