diff --git a/module/doc/lang/en.php b/module/doc/lang/en.php
index ddabeb847d..1316eb4e3d 100644
--- a/module/doc/lang/en.php
+++ b/module/doc/lang/en.php
@@ -69,3 +69,6 @@ $lang->doc->errorEmptyProject  = "{$lang->projectCommon} is empty, can not creat
 
 $lang->doc->placeholder = new stdclass();
 $lang->doc->placeholder->url = 'url';
+
+$lang->doclib = new stdclass();
+$lang->doclib->name = 'Library Name';
diff --git a/module/doc/lang/zh-cn.php b/module/doc/lang/zh-cn.php
index 835c1fa8e4..6acfa6237e 100644
--- a/module/doc/lang/zh-cn.php
+++ b/module/doc/lang/zh-cn.php
@@ -69,3 +69,6 @@ $lang->doc->errorEmptyProject  = "没有{$lang->projectCommon}，无法创建文
 
 $lang->doc->placeholder = new stdclass();
 $lang->doc->placeholder->url = '相应的链接地址';
+
+$lang->doclib = new stdclass();
+$lang->doclib->name = '文档库名称';