Should i mail a copy of 1099-s with amended return to IRS that i forgot to include in original tax return?

[sh1595]

I had sold a investment property for a loss of 2K that i forgot to add on original tax return, so i filed an amended return printed the form to mail to IRS as per instructions. Under explanations, i wrote that the 1099s form information was added. Now i am wondering, Do i have to send a copy of my 1099s form to IRS along with the 1040X amended tax return i just completed? (i see it says attach any supporting documents where it asked me to explain the changes on PART III)

[Critter]

No, the IRS got a copy of that form already ... they don't need yours.