Sold a business asset on eBay. I want to remove the asset from my list, but it looks like I had a gain. I reported this as income already on my 1099. How to handle?

Selling the item makes it look like a business gain, but I was issued a 1099 from eBay and reported that on my personal income tax return. Should I just leave the item listed on my assets, or report $0 as a sale of the item? Don't want to be double taxed on this income.