Set Default Value For Listbox For Form Load

I'm pretty much a complete novice here so I hope I explain this correctly. I have a form with a list box used to filter data for only "Open" or "Closed". This form works fine, but what I'd like to do is that when the form loads, for it automatically select "Open". The listbox is called lstTaskStatus.

Here is the sql for the form in case I need to put code in here somewhere.

SELECT tblObjective.SourceName, tblObjective.Objective, tblObjective.[Relationship Lead], tblObjective.[Management Lead], tblObjective.[Contract Start Date], tblObjective.[Contract End Date], tblObjective.Status, tblTask.[Task/Deliverable], tblTask.Staff, tblTask.[Start Date], tblTask.[Due Date], tblTask.[Completed Date], tblTask.Notes, DateDiff("m",[tblObjective]![Contract Start Date],[tblObjective]![Contract End Date]) & " Months" AS [Contract Duration], tblTask.[Task Status]
FROM tblObjective LEFT JOIN tblTask ON tblObjective.ObjectiveID = tblTask.ObjectiveID
WHERE (((tblTask.[Task/Deliverable]) Is Not Null) AND ((tblTask.[Task Status])=[Forms]![frmqryTaskList]![lstTaskStatus]))
ORDER BY tblTask.[Due Date];