diff --git a/bi/core.js b/bi/core.js
index 4d76894e9..016211273 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -4671,6 +4671,9 @@ BI.Widget = BI.inherit(BI.OB, {
             widget = name;
             name = widget.getName();
         }
+        if(BI.isKey(name)){
+            name = name + "";
+        }
         name = name || widget.getName() || BI.uniqueId("widget");
         if (this._children[name]) {
             throw new Error("name has already been existed");
diff --git a/dist/core.js b/dist/core.js
index 9a8ab007e..0b852a35d 100644
--- a/dist/core.js
+++ b/dist/core.js
@@ -14583,6 +14583,9 @@ BI.Widget = BI.inherit(BI.OB, {
             widget = name;
             name = widget.getName();
         }
+        if(BI.isKey(name)){
+            name = name + "";
+        }
         name = name || widget.getName() || BI.uniqueId("widget");
         if (this._children[name]) {
             throw new Error("name has already been existed");
diff --git a/src/core/widget.js b/src/core/widget.js
index 29bc55f37..bcb00e3b8 100644
--- a/src/core/widget.js
+++ b/src/core/widget.js
@@ -247,6 +247,9 @@ BI.Widget = BI.inherit(BI.OB, {
             widget = name;
             name = widget.getName();
         }
+        if(BI.isKey(name)){
+            name = name + "";
+        }
         name = name || widget.getName() || BI.uniqueId("widget");
         if (this._children[name]) {
             throw new Error("name has already been existed");