really need help with this

[joewaster]

SELECT SUM(minimum) 'minimum'

FROM ( (SELECT cmin * 1 'minimum' FROM book WHERE ID=4 )

UNION ALL (SELECT cmin * 2 'minimum' FROM book WHERE ID=5)) as s

=========================================================

when you run this query on 4.1.8 it returns
"Every derived table must have its own alias" error
, while newer version of mysql seems to work

is there a quick fix i can do to this query to get it working,

because i can't just upgrade to a newer mysql right away

please help