Issue with "..data.." in Trello script?

So, I've got the script up and running, however when I add in the ..data.. variable into the Trello link the Text from TypeIdea.Text doesn't post to the Trello, only the Players name does. The Trello Key and Token have been removed for security as they are private keys.

name = script.Parent.Parent.Parent.Parent.Name
data = script.Parent.Parent.IdeaGUI.TypeIdea.Text

function Post()
    game:service'HttpService':PostAsync("https://api.trello.com/1/cards?key=KEY&token=TOKEN&name="..name.."&desc="..data.."&idList=LISTID",game.HttpService:JSONEncode({"true"}))
end

script.Parent.MouseButton1Down:connect(Post)