diff --git a/module/custom/control.php b/module/custom/control.php
index b7ff14d51a..a37ea88342 100644
--- a/module/custom/control.php
+++ b/module/custom/control.php
@@ -121,7 +121,7 @@ class custom extends control
                     if(!empty($key) and $key != 'n/a' and !validater::checkREG($key, '/^[a-zA-Z_0-9]+$/')) die(js::alert($this->lang->custom->notice->keyList));
 
                     /* the length of role is 20, check it when save. */
-                    if($module == 'user' and $field == 'roleList' and strlen($key) > 20) die(js::alert($this->lang->custom->notice->userRole));
+                    if($module == 'user' and $field == 'roleList' and strlen($key) > 10) die(js::alert($this->lang->custom->notice->userRole));
                 }
 
                 $lang = $_POST['lang'];
diff --git a/module/custom/lang/en.php b/module/custom/lang/en.php
index 7bea454f8b..86598248e3 100644
--- a/module/custom/lang/en.php
+++ b/module/custom/lang/en.php
@@ -83,7 +83,7 @@ $lang->custom->allLang     = 'All Language';
 $lang->custom->confirmRestore = 'Do you want to reset to Default?';
 
 $lang->custom->notice = new stdclass();
-$lang->custom->notice->userRole             = 'Key must be no more than 20 characters!';
+$lang->custom->notice->userRole             = 'Key must be no more than 10 characters!';
 $lang->custom->notice->canNotAdd            = 'These items are parameters of calculation, so customized creation is not enabled.';
 $lang->custom->notice->forceReview          = '%s Review is required for certain submitters.';
 $lang->custom->notice->forceNotReview       = "%s Review is NOT required for certain submitters.";
diff --git a/module/custom/lang/zh-cn.php b/module/custom/lang/zh-cn.php
index 5d17b21186..92c0252f81 100644
--- a/module/custom/lang/zh-cn.php
+++ b/module/custom/lang/zh-cn.php
@@ -83,7 +83,7 @@ $lang->custom->allLang     = '适用所有语言';
 $lang->custom->confirmRestore = '是否要恢复默认配置？';
 
 $lang->custom->notice = new stdclass();
-$lang->custom->notice->userRole             = '键的长度必须小于20个字符！';
+$lang->custom->notice->userRole             = '键的长度必须小于10个字符！';
 $lang->custom->notice->canNotAdd            = '该项参与运算，不提供自定义添加功能';
 $lang->custom->notice->forceReview          = "指定人提交的%s必须评审。";
 $lang->custom->notice->forceNotReview       = "指定人提交的%s不需要评审。";
diff --git a/module/custom/lang/zh-tw.php b/module/custom/lang/zh-tw.php
index 3cace44c0d..0598964dee 100644
--- a/module/custom/lang/zh-tw.php
+++ b/module/custom/lang/zh-tw.php
@@ -83,7 +83,7 @@ $lang->custom->allLang     = '適用所有語言';
 $lang->custom->confirmRestore = '是否要恢復預設配置？';
 
 $lang->custom->notice = new stdclass();
-$lang->custom->notice->userRole             = '鍵的長度必須小於20個字元！';
+$lang->custom->notice->userRole             = '鍵的長度必須小於10個字元！';
 $lang->custom->notice->canNotAdd            = '該項參與運算，不提供自定義添加功能';
 $lang->custom->notice->forceReview          = "指定人提交的%s必須評審。";
 $lang->custom->notice->forceNotReview       = "指定人提交的%s不需要評審。";