Object doesn't support property or method 'column'

Object doesn't support property or method 'column'

I get this error trying to run the following code:

var name = $("#monthFilter option:selected").text();
table.column(7).search(name).draw();

Before you tell me to read the FAQs, I did check to make sure I'm using the correct initialization of the table, that is:

 var table = $('#tblForecast').DataTable();

as opposed to:

var table = $('#tblForecast').dataTable();

And still no luck. Am I missing something obvious?