diff --git a/src/less/base/single/editor/editor.textarea.less b/src/less/base/single/editor/editor.textarea.less
index 159e8aa5f..a95850abb 100644
--- a/src/less/base/single/editor/editor.textarea.less
+++ b/src/less/base/single/editor/editor.textarea.less
@@ -4,6 +4,7 @@
   .overflow-hidden();
   & .textarea-editor-content {
     white-space: pre-wrap;
+    word-break: break-all;
     font-size: @font-size-12;
     line-height: 21px;
     & {