wrong DOB in Form I797

I have got the approval form INS and I have submitted all the materials to apply for H1-B visa in local US consulate. Unfortunately, yesterday I found a terrible mistake in my Form I 797, that was my the date of birth in Form I 797 was not agree with my true one. What will happen when I interview with visa officer a couple of days later? Is anything I can do regarding to such a mistake? Thanks for your reply.