Should I report my foreign apartment, even if I'm only renting it as "not for profit"?

I am permanent resident and I own an apartment abroad. I rent it as "not for profit", thus I tax it as other income. I just put the total income on Schedule 1, in "8 Other income." to be exact. But I just write "Not for Profit Rental - $2,000". That's it, there is no more information about the apartment.

My question is: Should I file any other form that would tell IRS, that there is an apartment that I own?

I'm asking, because I owned the apartment before I became US resident (before I even came to the US), so IRS doesn't know about the fact that I own this apartment at all. I'm not sure if it's important or not, but I just wanted to verify.