Salaah

Making sajdah-e-sahw after salaah

Q: Is it right to perform sajda-e-sahw if someone forgets to make it within salaah? When I remember, without reciting anything else, I just to sit down and recite attahiyyaat upto (abduhu warasuluh) then one salam on the right side then two sajdahs of sahw and then attahiyyaat, durood and dua and then 2 salaam.