diff --git a/src/base/single/editor/editor.textarea.js b/src/base/single/editor/editor.textarea.js
index 9b51b63c70..0e66cf2837 100644
--- a/src/base/single/editor/editor.textarea.js
+++ b/src/base/single/editor/editor.textarea.js
@@ -83,7 +83,7 @@ BI.TextAreaEditor = BI.inherit(BI.Single, {
                         type: "bi.text_button",
                         cls: "bi-water-mark cursor-default",
                         textAlign: "left",
-                        height: 20,
+                        whiteSpace: "normal",
                         text: o.watermark,
                         invalid: o.invalid,
                         disabled: o.disabled