diff --git a/bi/core.js b/bi/core.js
index ab4d1a5eb..05effe0c2 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -5837,9 +5837,6 @@ BI.View = BI.inherit(BI.V, {
             throw ("shortcut:[" + xtype + "] has been registed");
         }
         kv[xtype] = cls;
-        _.extend(cls.prototype, {
-            xtype: xtype
-        })
     };
 
     // 根据配置属性生成widget
diff --git a/docs/core.js b/docs/core.js
index cf66ba0af..d7b40882d 100644
--- a/docs/core.js
+++ b/docs/core.js
@@ -15833,9 +15833,6 @@ BI.View = BI.inherit(BI.V, {
             throw ("shortcut:[" + xtype + "] has been registed");
         }
         kv[xtype] = cls;
-        _.extend(cls.prototype, {
-            xtype: xtype
-        })
     };
 
     // 根据配置属性生成widget
diff --git a/src/core/shortcut.js b/src/core/shortcut.js
index bd8841c9c..4bd757575 100644
--- a/src/core/shortcut.js
+++ b/src/core/shortcut.js
@@ -6,9 +6,6 @@
             throw ("shortcut:[" + xtype + "] has been registed");
         }
         kv[xtype] = cls;
-        _.extend(cls.prototype, {
-            xtype: xtype
-        })
     };
 
     // 根据配置属性生成widget