toJSONString button in dialog in JQuery UI 1.5b

When showing a dialog with an OK and Cancel button, I also get a toJSONString button. I presume this is for debugging purposes, but I did not see an easy way to turn it off. JQuery UI 1.5b.

Here is how I create the dialog:

$("#sqlDlg").dialog({

title: "SQL Expression",

buttons: {

"OK": sqlDoOk,

"Cancel": sqlDoCancel

},

height: 225,

width: 530

});