there is no such word as "dependant." it's "dependent." really sorry to be that guy but it would hugely brighten my day if you could fix the spelling in the title.
A more constructive comment might be, "the spelling variant you have used is normally a noun meaning 'a person who depends on another for their upkeep or care', where here you want the more normal adjectival spelling 'dependent'."
A more constructive comment might be, "the spelling variant you have used is normally a noun meaning 'a person who depends on another for their upkeep or care', where here you want the more normal adjectival spelling 'dependent'."
Although fwiw it seems that even as an adjective "dependant" might fly: http://www.wordnik.com/words/dependant