diff --git a/src/core/wrapper/layout/layout.card.js b/src/core/wrapper/layout/layout.card.js
index 6a40ea856a..b44527270a 100644
--- a/src/core/wrapper/layout/layout.card.js
+++ b/src/core/wrapper/layout/layout.card.js
@@ -76,7 +76,7 @@ BI.CardLayout = BI.inherit(BI.Layout, {
     },
 
     _deleteCardByName: function (cardName) {
-        delete this._children[this.getName() + "_" + cardName];
+        delete this._children[this._getChildName(cardName)];
         var index = BI.findIndex(this.options.items, function (i, item) {
             return item.cardName == cardName;
         });
diff --git a/src/core/wrapper/layout/layout.tape.js b/src/core/wrapper/layout/layout.tape.js
index 0938ac549b..0ac7806655 100644
--- a/src/core/wrapper/layout/layout.tape.js
+++ b/src/core/wrapper/layout/layout.tape.js
@@ -46,7 +46,7 @@ BI.HTapeLayout = BI.inherit(BI.Layout, {
         var self = this, o = this.options;
         items = BI.compact(items);
         BI.each(items, function (i, item) {
-            if (!self.hasWidget(self.getName() + "_" + i)) {
+            if (!self.hasWidget(self._getChildName(i))) {
                 var w = BI._lazyCreateWidget(item);
                 self.addWidget(self._getChildName(i), w);
             } else {