As far as lending goes, your BK voluntary petition with schedule of creditors and finally your discharge will be all the lender needs. As far as a permanent solution, you can either call the Credit Bureau direct or just make a copy of your petition and discharge and send to the one credit bureau that still is reporting that judgement. In a letter or (Dispute Form Letter which can be found on Google) state your Name, address, and contact information and a statement to "Please update my credit file as per my Chapter (7 or 13) Bankruptcy and specifically the judgment still showing as "Not Released" Do this now so you won't have to worry about this during the loan process.
FYI, another solution is to contact a lender as they can do a correction/rapid re-score on that judgment. This be will your fastest remedy but that will come with a modest charge.
Best of Luck!