Auto save as VBA code causes Debugger prompt if I don't want to replace file

Mumps1 was kind enough to help me with a code from another thread that worked great for what I needed but an unforeseen issue popped up that may can be fixed with another line or code or I may have to simply train operators on the debugger. Here is the code he did for me:

Private Sub Workbook_BeforeClose(Cancel As Boolean)
    Dim sName As String
    Dim i As Long
    For i = 9 To 13
        sName = sName & Cells(3, i)
    Next i
    ActiveWorkbook.SaveAs Filename:="C:\Test\Release" & sName & ".xlsm", FileFormat:=52
End Sub

What this does is when an employee closes out this sheet it will make a copy in C:\Test folder named Release xxxxx (the xxxxx comes from a range of cells within the sheet). The code works perfectly for me and the reason for the code was for employees who are not comfortable with computers. However if I go to look at a file for whatever reason, upon closing it will say that file already exists and would I like to replace the current copy. That is great because it prevents people from forgetting to change the series number or things like that but they are times when I would open a file and not make changes or have to open a file and plug in some "what if" numbers and then close it not saving any changes and if I select that I do not want to replace the current version it then goes into debug mode.

So...long story short, can a line of code be added to this that does not send it into debugg mode if I chose not to replace my current copy? Hopefully I wasn't too confusing.