Yes it matters. We are going through this problem right now. Your W-2 must be fixed by your employer. Meanwhile you cannot e-file (IRS will reject you).
Easy fix: Make sure everything is correct on your return and mail it in with your W-2's. It will take longer than usual, but it's the only choice you have, aside from waiting for your employer to fix the problem and e-file it when you get the correct W-2. By then you might need an extension! Good luck!
