You need to ask your employer to correct it

As you said you are a full time empployee, right? In that case, you are under W-2, your company can't give you 1099 at the end of year. Each quarter, a 941 form should be filed together with tax withhold composed of your deduction and company's matching part. IRS is enforcing that.

Clearly, your company wants to give you 1099 to evade "matching" part. I'll recommand you to talk to your company to make sure doing right.