diff --git a/improved_multi_select.js b/improved_multi_select.js
index dee7621..fb883a9 100755
--- a/improved_multi_select.js
+++ b/improved_multi_select.js
@@ -94,13 +94,15 @@
                 if (group) {
                   group = ' group="' + group + '"';
                 }
-                if ($opt.attr('selected')) {
-                  $('#improvedselect-' + improvedselect_id + ' .improvedselect_sel', context)
-                    .append('<li so="' + $opt.attr('value') + '"' + group + '>' + $opt.text() + '</li>');
-                }
-                else {
-                  $('#improvedselect-' + improvedselect_id + ' .improvedselect_all', context)
-                    .append('<li so="' + $opt.attr('value') + '"' + group + '>' + $opt.text() + '</li>');
+                if ($opt.attr('value') != "_none") {
+                  if ($opt.attr('selected')) {
+                    $('#improvedselect-' + improvedselect_id + ' .improvedselect_sel', context)
+                      .append('<li so="' + $opt.attr('value') + '"' + group + '>' + $opt.text() + '</li>');
+                  }
+                  else {
+                    $('#improvedselect-' + improvedselect_id + ' .improvedselect_all', context)
+                      .append('<li so="' + $opt.attr('value') + '"' + group + '>' + $opt.text() + '</li>');
+                  }
                 }
               }
             });