Get rid of line avobe UITableView

I have a UITableView which does not take the whole space on the screen. There are no separator lines between the list items. However there is a light grey line above the whole table which I can't get rid of.

In the image below the line is visible, and underneath there are 2 list items containing only the text "testing". Please advice how to get rid of the li开发者_开发知识库ne above the table. Thank you!

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Can you try the line tableView.backgroundColor = [UIColor clearColor]; for me?