diff --git a/deluge/plugins/label/label/data/label.js b/deluge/plugins/label/label/data/label.js
index ba9cd510b..f718ae26a 100644
--- a/deluge/plugins/label/label/data/label.js
+++ b/deluge/plugins/label/label/data/label.js
@@ -330,7 +330,9 @@ Deluge.ux.LabelOptionsWindow = Ext.extend(Ext.Window, {
 
     onOkClick: function() {
         var values = this.form.getForm().getFieldValues();
-        values['auto_add_trackers'] = values['auto_add_trackers'].split('\n');
+		if (values['auto_add_trackers']) {
+			values['auto_add_trackers'] = values['auto_add_trackers'].split('\n');
+		}
         deluge.client.label.set_options(this.label, values);
         this.hide();
     },