diff --git a/src/case/editor/editor.sign.js b/src/case/editor/editor.sign.js
index f2ae0560f..28f1ab1cf 100644
--- a/src/case/editor/editor.sign.js
+++ b/src/case/editor/editor.sign.js
@@ -171,6 +171,10 @@ BI.SignEditor = BI.inherit(BI.Widget, {
         this.text.setTitle(title);
     },
 
+    setTipType: function (v) {
+        this.text.setTipType(v);
+    },
+
     setWarningTitle: function (title) {
         this.text.setWarningTitle(title);
     },