1099-B Editing

I've entered a 1099-B. I have a typo in the name of the stock (the sales was done by the stock company itself). How do I edit that? 

 

Note, l am not looking for how to enter a brand new 1099-B. I have already entered it. Nor am l looking to edit the sales information. I want to change the name of the 1099-B that l have already entered.