Corrected W-2 for failed 401K ADP non discrimination test?

Is it possible to get a corrected W-2 when I have received a refund from a 401K that failed the 401K adp / acp nondiscrimination test?  Currently is shows the full 25K in the box 12 on the w-2 I received from the company where I am employed.  They refunded almost 7K.  I have another solo 401K that I could put that 7K in, but the 25K is the max I can personally put in and I don't want to throw up any red flags by funding it without a corrected W-2.  

Thanks