diff --git a/config/zentaopms.php b/config/zentaopms.php
index 476ae5d778..1b94bfc23c 100644
--- a/config/zentaopms.php
+++ b/config/zentaopms.php
@@ -113,6 +113,9 @@ $config->hourPointCommonList['vi'][0] = 'giờ';
 $config->hourPointCommonList['vi'][1] = 'điểm';
 $config->hourPointCommonList['vi'][2] = 'function point';
 
+$config->manualUrl['home'] = 'https://www.zentao.net/book/zentaopmshelp.html?fullScreen=zentao';
+$config->manualUrl['int']  = 'https://www.zentao.pm/book/zentaomanual/zentao-installation-11.html?fullScreen=zentao';
+
 /* Supported charsets. */
 $config->charsets['zh-cn']['utf-8'] = 'UTF-8';
 $config->charsets['zh-cn']['gbk']   = 'GBK';
diff --git a/module/common/lang/de.php b/module/common/lang/de.php
index 04a8f57fd9..40f4af6fe9 100644
--- a/module/common/lang/de.php
+++ b/module/common/lang/de.php
@@ -86,7 +86,6 @@ $lang->homepage        = 'Als Startseite setzen';
 $lang->noviceTutorial  = 'Anleitung';
 $lang->changeLog       = 'Änderungsprotokoll';
 $lang->manual          = 'Handbuch';
-$lang->manualUrl       = 'http://www.zentao.net/book/zentaopmshelp.html?fullScreen=zentao';
 $lang->customMenu      = 'Benutzer Menü';
 $lang->customField     = 'Individualfeld';
 $lang->lineNumber      = 'Zeile Nr.';
diff --git a/module/common/lang/en.php b/module/common/lang/en.php
index 86bac80496..81d53ed0df 100644
--- a/module/common/lang/en.php
+++ b/module/common/lang/en.php
@@ -86,7 +86,6 @@ $lang->homepage        = 'Set Home';
 $lang->noviceTutorial  = 'ZenTao Tutorial';
 $lang->changeLog       = 'Change Log';
 $lang->manual          = 'User Manual';
-$lang->manualUrl       = 'https://www.zentao.pm/book/zentaomanual/zentao-installation-11.html';
 $lang->customMenu      = 'Custom Menu';
 $lang->customField     = 'Custom Field';
 $lang->lineNumber      = 'Line No.';
diff --git a/module/common/lang/fr.php b/module/common/lang/fr.php
index ca726018f9..7dfdacd0e3 100644
--- a/module/common/lang/fr.php
+++ b/module/common/lang/fr.php
@@ -86,7 +86,6 @@ $lang->homepage        = 'Set Home';
 $lang->noviceTutorial  = 'Tutoriel ZenTao';
 $lang->changeLog       = 'Change Log';
 $lang->manual          = 'User Manual';
-$lang->manualUrl       = 'https://www.zentao.pm/book/zentaomanual/zentao-installation-11.html';
 $lang->customMenu      = 'Personnalisation Menu';
 $lang->customField     = 'Personnalisation Champ';
 $lang->lineNumber      = 'Ligne No.';
diff --git a/module/common/lang/vi.php b/module/common/lang/vi.php
index 443f355ece..60cf0134d8 100644
--- a/module/common/lang/vi.php
+++ b/module/common/lang/vi.php
@@ -86,7 +86,6 @@ $lang->homepage        = 'Trang thiết lập';
 $lang->noviceTutorial  = 'Hướng dẫn ZenTao';
 $lang->changeLog       = 'Thay đổi nhật ký';
 $lang->manual          = 'Hướng dẫn người dùng';
-$lang->manualUrl       = 'https://www.zentao.pm/book/zentaomanual/zentao-installation-11.html';
 $lang->customMenu      = 'Tùy biến Menu';
 $lang->customField     = 'Tùy biến trường';
 $lang->lineNumber      = 'Số dòng';
diff --git a/module/common/lang/zh-cn.php b/module/common/lang/zh-cn.php
index 7acc235484..0e188fcdf1 100644
--- a/module/common/lang/zh-cn.php
+++ b/module/common/lang/zh-cn.php
@@ -86,7 +86,6 @@ $lang->homepage        = '设为模块首页';
 $lang->noviceTutorial  = '新手教程';
 $lang->changeLog       = '修改日志';
 $lang->manual          = '手册';
-$lang->manualUrl       = 'https://www.zentao.net/book/zentaopmshelp.html?fullScreen=zentao';
 $lang->customMenu      = '自定义导航';
 $lang->customField     = '自定义表单项';
 $lang->lineNumber      = '行号';
diff --git a/module/common/lang/zh-tw.php b/module/common/lang/zh-tw.php
index 1599e01c53..393185028a 100644
--- a/module/common/lang/zh-tw.php
+++ b/module/common/lang/zh-tw.php
@@ -86,7 +86,6 @@ $lang->homepage        = '設為模組首頁';
 $lang->noviceTutorial  = '新手教程';
 $lang->changeLog       = '修改日誌';
 $lang->manual          = '手冊';
-$lang->manualUrl       = 'https://www.zentao.net/book/zentaopmshelp.html?fullScreen=zentao';
 $lang->customMenu      = '自定義導航';
 $lang->customField     = '自定義表單項';
 $lang->lineNumber      = '行號';
diff --git a/module/common/model.php b/module/common/model.php
index 440a851fea..e67ab4a9b0 100644
--- a/module/common/model.php
+++ b/module/common/model.php
@@ -325,7 +325,10 @@ class commonModel extends model
         echo "<a data-toggle='dropdown'>" . $lang->help . "</a>";
         echo "<ul class='dropdown-menu pull-left'>";
         if($config->global->flow == 'full' && !commonModel::isTutorialMode() and $app->user->account != 'guest') echo '<li>' . html::a(helper::createLink('tutorial', 'start'), $lang->noviceTutorial, '', "class='iframe' data-class-name='modal-inverse' data-width='800' data-headerless='true' data-backdrop='true' data-keyboard='true'") . "</li>";
-        echo '<li>' . html::a($lang->manualUrl, $lang->manual, '_blank', "class='open-help-tab'") . '</li>';
+
+        $manualUrl = (isset($config->isINT) and $config->isINT) ? $config->manualUrl['int'] : $config->manualUrl['home'];
+        echo '<li>' . html::a($manualUrl, $lang->manual, '_blank', "class='open-help-tab'") . '</li>';
+
         echo '<li>' . html::a(helper::createLink('misc', 'changeLog'), $lang->changeLog, '', "class='iframe' data-width='800' data-headerless='true' data-backdrop='true' data-keyboard='true'") . '</li>';
         echo "</ul></li>\n";
         echo '<li>' . html::a(helper::createLink('misc', 'about'), $lang->aboutZenTao, '', "class='about iframe' data-width='1050' data-headerless='true' data-backdrop='true' data-keyboard='true' data-class='modal-about'") . '</li>';