It is up to her government to correct her passport.
The above is intended only as general information, and does not constitute legal advice. You must speak with an attorney to discuss your individual case.
The USCIS must rectify that inadvertent mistake.
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I agree with my colleagues. She may request a misspelling to be corrected on her own documents. However if this is not so easily corrected by USCIS, she may need to get the original documents corrected first. This would involve contacting the issuing agencies from her country. The consulate may be able to provide some assistance.