diff --git a/src/case/ztree/0.treeview.js b/src/case/ztree/0.treeview.js
index f67c9291b..f9dd56f50 100644
--- a/src/case/ztree/0.treeview.js
+++ b/src/case/ztree/0.treeview.js
@@ -55,7 +55,7 @@ BI.TreeView = BI.inherit(BI.Pane, {
         });
         BI.createWidget({
             type: "bi.default",
-            element: this.element,
+            element: this,
             items: [this.tree]
         });
     },
diff --git a/src/widget/numberinterval/numberinterval.js b/src/widget/numberinterval/numberinterval.js
index b0b5579b5..9e2df9825 100644
--- a/src/widget/numberinterval/numberinterval.js
+++ b/src/widget/numberinterval/numberinterval.js
@@ -66,7 +66,7 @@ BI.NumberInterval = BI.inherit(BI.Single, {
         });
         BI.createWidget({
             type: "bi.absolute",
-            element: this.smallEditor.element,
+            element: this.smallEditor,
             items: [{
                 el: this.smallTip,
                 top: 0,
@@ -104,7 +104,7 @@ BI.NumberInterval = BI.inherit(BI.Single, {
         });
         BI.createWidget({
             type: "bi.absolute",
-            element: this.bigEditor.element,
+            element: this.bigEditor,
             items: [{
                 el: this.bigTip,
                 top: 0,
@@ -548,4 +548,4 @@ BI.NumberInterval.EVENT_CHANGE = "EVENT_CHANGE";
 BI.NumberInterval.EVENT_CONFIRM = "EVENT_CONFIRM";
 BI.NumberInterval.EVENT_VALID = "EVENT_VALID";
 BI.NumberInterval.EVENT_ERROR = "EVENT_ERROR";
-BI.shortcut("bi.number_interval", BI.NumberInterval);
\ No newline at end of file
+BI.shortcut("bi.number_interval", BI.NumberInterval);