diff --git a/app/scanner/mainwindow.cpp b/app/scanner/mainwindow.cpp
index d2af5b32..585c0ab5 100644
--- a/app/scanner/mainwindow.cpp
+++ b/app/scanner/mainwindow.cpp
@@ -2368,13 +2368,25 @@ void MainWindow::on_act_help_triggered()
         QString filename = QApplication::applicationDirPath() +  "/HuaGoScan_App_Help_manual.pdf";
     #endif
 #else
-    #if defined(OEM_HANWANG)
-        QString filename = "/opt/apps/com.hanvonchina.hanvonscan/entries/help/HanvonScan_App_Help_manual.pdf";
-    #elif defined(OEM_LISICHENG)
-        QString filename = "/opt/apps/com.lanxumchina.lanxumscan/entries/help/LanxumScan_App_Help_manual.pdf";
+    #if defined (UOS)
+        #if defined(OEM_HANWANG)
+            QString filename = "/opt/apps/com.hanvonchina.hanvonscan/entries/help/HanvonScan_App_Help_manual.pdf";
+        #elif defined(OEM_LISICHENG)
+            QString filename = "/opt/apps/com.lanxumchina.lanxumscan/entries/help/LanxumScan_App_Help_manual.pdf";
+        #else
+            QString filename = "/opt/apps/com.huagaochina.huagoscan/entries/help/HuaGoScan_App_Help_manual.pdf";
+        #endif
+    #elif defined(KYLIN)
+        #if defined(OEM_HANWANG)
+            QString filename = "/opt/apps/scanner-driver-hanvon/doc/HanvonScan_App_Help_manual.pdf";
+        #elif defined(OEM_LISICHENG)
+            QString filename = "/opt/apps/scanner-driver-lanxum/doc/entries/help/LanxumScan_App_Help_manual.pdf";
+        #else
+            QString filename = "/opt/apps/scanner-driver-huagao/doc/help/HuaGoScan_App_Help_manual.pdf";
+        #endif
     #else
-        QString filename = "/opt/apps/com.huagaochina.huagoscan/entries/help/HuaGoScan_App_Help_manual.pdf";
-    #endif
+        QString filename = nullptr;
+     #endif
 #endif
 
     QFileInfo info(filename);
diff --git a/build-qt/HGSolution/HGScanner.pro b/build-qt/HGSolution/HGScanner.pro
index b4f5ca89..e2be3914 100644
--- a/build-qt/HGSolution/HGScanner.pro
+++ b/build-qt/HGSolution/HGScanner.pro
@@ -52,6 +52,7 @@ unix {
 	message($$ARCH)
 
         contains(DISTRIBUTION, UnionTech){
+                DEFINES += UOS
 		contains(ARCH, x86_64){
                         LIBS += -L../../../release/uos/x86_64 -lHGBase -lHGImgFmt -lHGImgProc -lsane-hgsane -lhgdriver
 			CONFIG(release, debug|release) {
@@ -81,7 +82,7 @@ unix {
 		}
 	}
         contains(DISTRIBUTION, Kylin){
-
+                DEFINES += KYLIN
                 contains(ARCH, x86_64){
                         LIBS += -L../../../release/kylin/x86_64 -lHGBase -lHGImgFmt -lHGImgProc -lsane-hgsane -lhgdriver
                         CONFIG(release, debug|release) {