diff --git a/demo/js/fix-2.0/scene.js b/demo/js/fix-2.0/scene.js
index a52e809d4..8e58c2e55 100644
--- a/demo/js/fix-2.0/scene.js
+++ b/demo/js/fix-2.0/scene.js
@@ -139,6 +139,7 @@
             return {
                 type: "bi.tab",
                 defaultShowIndex: this.constant.TAB1,
+                single: true,
                 tab: {
                     type: "bi.button_group",
                     items: BI.createItems([{
diff --git a/dist/demo.js b/dist/demo.js
index cc31af03e..1d76ad8e7 100644
--- a/dist/demo.js
+++ b/dist/demo.js
@@ -10337,6 +10337,7 @@ BI.shortcut("demo.tmp", Demo.Func);
             return {
                 type: "bi.tab",
                 defaultShowIndex: this.constant.TAB1,
+                single: true,
                 tab: {
                     type: "bi.button_group",
                     items: BI.createItems([{
diff --git a/dist/fix/fix.compact.js b/dist/fix/fix.compact.js
index 5815e1b1a..b460abf9c 100644
--- a/dist/fix/fix.compact.js
+++ b/dist/fix/fix.compact.js
@@ -34,7 +34,7 @@
     var unMount = BI.Widget.prototype._unMount;
     BI.Widget.prototype._unMount = function () {
         unMount.apply(this, arguments);
-        this.store && this.store.destroy();
+        this.store && BI.isFunction(this.store.destroy) && this.store.destroy();
         BI.each(this._watchers, function (i, unwatches) {
             unwatches = BI.isArray(unwatches) ? unwatches : [unwatches];
             BI.each(unwatches, function (j, unwatch) {