Though not strictly required, it is best to correct the error before filing.
Generally speaking, nicknames, abbreviations, and misspelled names should not be used on immigration forms, except in the column that asks for other names used. An individual’s full legal name should be used, consistent with all other official documents. Discrepancies in an applicant’s name between official documents can result in delays while U.S. Citizenship and Immigration Services (USCIS) verifies the applicant's identity and that their documents are authentic.