Yes. According to the Form 1040X instructions section u201cResident and nonresident aliensu201d, to amend a Form 1040NR or 1040NR-EZ, you will need to complete a corrected Form 1040NR or 1040NR-EZ, and attach it to a Form 1040X.Note that you can only file as married if you were married as of December 31 of the tax year you are amending.