Schema Mismatch

The schema module is reporting a table for which the schema and database are different under node_reminder in two places:

column notify_on - difference on: not null
declared: array('description' => 'TODO: please describe this field!', 'type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE)
actual: array('description' => 'TODO: please describe this field!', 'type' => 'int', 'unsigned' => TRUE, 'not null' => FALSE)

column repeat_enabled - difference on: length
declared: array('description' => 'TODO: please describe this field!', 'type' => 'int', 'unsigned' => TRUE, 'length' => 1)
actual: array('description' => 'TODO: please describe this field!', 'type' => 'int', 'unsigned' => TRUE, 'not null' => FALSE)