diff --git a/db/update21.6.1.sql b/db/update21.6.1.sql
new file mode 100644
index 0000000000..b5d2568acc
--- /dev/null
+++ b/db/update21.6.1.sql
@@ -0,0 +1,3 @@
+ALTER TABLE `zt_task`   ADD COLUMN `docs` text NULL AFTER `fromIssue`;
+ALTER TABLE `zt_story`  ADD COLUMN `docs` text NULL AFTER `linkRequirements`;
+ALTER TABLE `zt_design` ADD COLUMN `docs` text NULL AFTER `storyVersion`;
diff --git a/db/zentao.sql b/db/zentao.sql
index f4b15f9645..5ed31631e2 100755
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -751,6 +751,7 @@ CREATE TABLE IF NOT EXISTS `zt_design` (
   `deleted` enum('0','1') NOT NULL DEFAULT '0',
   `story` char(30) NOT NULL DEFAULT '',
   `storyVersion` smallint(6) UNSIGNED NOT NULL DEFAULT '1',
+  `docs` text NULL,
   `desc` mediumtext NULL,
   `version` smallint(6) NOT NULL DEFAULT '0',
   `type` char(30) NOT NULL DEFAULT '',
@@ -1944,6 +1945,7 @@ CREATE TABLE IF NOT EXISTS `zt_story` (
   `toBug` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `linkStories` varchar(255) NOT NULL DEFAULT '',
   `linkRequirements` varchar(255) NOT NULL DEFAULT '',
+  `docs` text NULL,
   `twins` varchar(255) NOT NULL DEFAULT '',
   `duplicateStory` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `version` smallint(6) NOT NULL DEFAULT '1',
@@ -2046,6 +2048,7 @@ CREATE TABLE IF NOT EXISTS `zt_task` (
   `fromBug` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `feedback` mediumint(8) unsigned NOT NULL DEFAULT '0',
   `fromIssue` mediumint(8) unsigned NOT NULL DEFAULT '0',
+  `docs` text NULL,
   `name` varchar(255) NOT NULL DEFAULT '',
   `type` varchar(20) NOT NULL DEFAULT '',
   `mode` varchar(10) NOT NULL DEFAULT '',
diff --git a/module/task/ui/edit.html.php b/module/task/ui/edit.html.php
index 7335ac6a22..9cdf5f6a75 100644
--- a/module/task/ui/edit.html.php
+++ b/module/task/ui/edit.html.php
@@ -172,6 +172,7 @@ detailBody
         ) : null,
         section
         (
+            setID('files'),
             set::title($lang->files),
             fileSelector($task->files ? set::defaultFiles(array_values($task->files)) : null)
         ),