Selector "SELECT[name=FOO] option[value=BAR]" works in 1.4.4 and doesn't work in 1.5.2

In 1.5.2 there's error:

Uncaught Syntax error, unrecognized expression:

[value=D:\\Results\\BDS2007\\EXE\\MitraMessageCenterApp.exe]

k.errorjquery.js:16

k.filterjquery.js:16

kjquery.js:16

c.querySelectorAll.kjquery.js:16

d.fn.extend.findjquery.js:16

d.d.fn.d.initjquery.js:16

d.djquery.js:16

check_add:2222/:201

update:2222/:144

d.extend._Deferred.f.resolveWithjquery.js:16

vjquery.js:16

d.support.ajax.d.ajaxTransport.send.cjquery.js:16

I'm trying to append option to SELECT only if there isn't one there already:

function check_add(select_name, value) {
	if ($("SELECT[name=" + select_name + "] option[value=" + value + "]").length == 0) {
		$("SELECT[name=" + select_name + "]").append($("<option />").text(value || '').val(value || ''));
	}
}

Using Chrome 10.0.648.205 under Windows XP.