Hide sort icon

Hi,
Is there any way yo hide the sort icon from a particular column?
I am using the datatables for displaying the list of users. the last col of the table will be the actions to be performed on the record. This col is obviously not sortable. So I set the col "bSortable": false. But the sort icon still visible in the table header. Is there any way to hide the icon here..?

Thanks,
Girish