Insert of site to list of sites for cron fails due to error in insert query

Insert query in cron.module of version 6.x-1.5 of admintools project:
In the function cron_add_form_submit
the query
db_query("INSERT INTO {cron} (url, cron_key, description, checks, last_check) VALUES ('%s', '%s', 1, '%d')",...
should be...
db_query("INSERT INTO {cron} (url, cron_key, description, checks, last_check) VALUES ('%s', '%s', '%s', 1, '%d')",...

So one '%s' is missing.