diff --git a/app/scanner2/mainwindow.cpp b/app/scanner2/mainwindow.cpp
index e1793188..c1cd1fa3 100644
--- a/app/scanner2/mainwindow.cpp
+++ b/app/scanner2/mainwindow.cpp
@@ -3268,6 +3268,8 @@ void MainWindow::on_act_help_triggered()
         filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual.pdf";
         if (m_currLang == "english")
             filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual_EN.pdf";
+        else if (m_currLang == "chinese-trad")
+            filename = QApplication::applicationDirPath() + "/MicrotekScan_App_Help_manual_TRADCN.pdf";
     #elif defined(OEM_ZIGUANG)
         filename = QApplication::applicationDirPath() + "/UniScan_App_Help_manual.pdf";
     #elif defined(OEM_NEUTRAL)
@@ -3291,6 +3293,8 @@ void MainWindow::on_act_help_triggered()
         filename = QApplication::applicationDirPath() + "/../../entries/help/MicrotekScan_App_Help_manual.pdf";
         if (m_currLang == "english")
             filename = QApplication::applicationDirPath() + "/../../entries/help/MicrotekScan_App_Help_manual_EN.pdf";
+        else if (m_currLang == "chinese-trad")
+            filename = QApplication::applicationDirPath() + "/../../entries/help/MicrotekScan_App_Help_manual_TRADCN.pdf";
 #elif defined(OEM_ZIGUANG)
         filename = QApplication::applicationDirPath() + "/../../entries/help/UniScan_App_Help_manual.pdf";
 #elif defined(OEM_NEUTRAL)
@@ -3313,6 +3317,8 @@ void MainWindow::on_act_help_triggered()
         filename = QApplication::applicationDirPath() + "/../doc/MicrotekScan_App_Help_manual.pdf";
         if (m_currLang == "english")
             filename = QApplication::applicationDirPath() + "/../doc/MicrotekScan_App_Help_manual_EN.pdf";
+        else if (m_currLang == "chinese-trad")
+            filename = QApplication::applicationDirPath() + "/../doc/MicrotekScan_App_Help_manual_TRADCN.pdf";
 #elif defined(OEM_ZIGUANG)
         filename = QApplication::applicationDirPath() + "/../doc/UniScan_App_Help_manual.pdf";
 #elif defined(OEM_NEUTRAL)