Restricting Auto Add Row In Second Sheet To Only One Trigger

I have cut and paste some code provided by members of this great forum to insert a row in a second worksheet at the same row number when one is inserted in the active worksheet. e.g. If I insert a new line at Row 14 in worksheet "admin" I also get a new row at Row 14 in worksheet "report".

Code is as follows:

Private Sub Worksheet_Change(ByVal Target As Range)
Set sourcebook = ThisWorkbook
Set sourcesheet = sourcebook.Worksheets("admin")
Set targetbook = ThisWorkbook
Set targetsheet = targetbook.Worksheets("report")
myRow = ActiveCell.Row
targetsheet.Activate
ActiveSheet.Rows(myRow).EntireRow.Insert
sourcesheet.Activate
End Sub

However, anything I do in worksheet "admin" triggers a new row to be inserted in "report".... If I change text in any cell, or make any changes at all, I get a new row in "report".

Is there a way to restrict this action to only a line insert?