The IRS may or may not find the mistake since they get copies of all 1099 forms. You should file an amended return if the IRS does not catch the error, you can wait until the IRS fully processes your return. Any tax due with the amended return should be included. An amended return must be mailed. Since any tax due should be paid by April 15, 2019 to avoid a penalty & interest, you might want to mail your amended return in & pay the Federal tax due on the IRS website.
https://www.irs.gov/payments
If you have a State due you can check your states website to pay online.
How do I amend a 2018 return in TurboTax?
https://ttlc.intuit.com/replies/7276605
