Medical treatment form for Nassar medical treatments, an Iranian-owned company, has been added to a Google Docs form, making it easier for victims of the attack to get help.
According to Iranian state media, the form is the result of an exchange of information between the two companies on how to access and obtain treatment for patients in the country.
It is not clear what caused the error.
An online petition calling for Nassara to be added to the Google Doc form has garnered more than 1.5 million signatures.
Iranian officials have said that the company was a victim of an attack in which at least 13 people were killed, including at least one doctor.