Tehran’s foreign ministry says it is considering a plan for the presidents of the United States and Iran to sign the deal ending the Middle East war, ahead of the expected ceremony in Switzerland, AFP reports.

“So far, our plans for the Geneva meeting have not changed,” ministry spokesman Esmaeil Baghaei says. “Regarding the signing of the memorandum of understanding, one idea is that it be done by the presidents of the two countries, which is currently under review.”