Will my FSBO listing on Zillow be replaced with the MLS listing?

Will my FSBO listing on Zillow be replaced with the MLS listing?

Once your property is listed on the Multiple Listing Service (MLS), the details and information will be automatically shared with popular public websites like Zillow, Redfin, Realtor, and others. 

The default behavior of Zillow.com (which owns and feeds into Trulia.com) is to override your FSBO listing with the MLS data.

If you have a Zillow FSBO listing and want to list on the MLS, you do not need to take down your Zillow listing. Zillow will automatically override your FSBO listing with the MLS listing.