diff --git a/src/ui/w_MainWindow_extra.cpp b/src/ui/w_MainWindow_extra.cpp
index 256241aa..0cca3f7b 100644
--- a/src/ui/w_MainWindow_extra.cpp
+++ b/src/ui/w_MainWindow_extra.cpp
@@ -63,7 +63,7 @@ void MainWindow::MWSetSystemProxy()
             auto httpPort = GlobalConfig.inboundConfig.useHTTP ? GlobalConfig.inboundConfig.http_port : 0;
             auto socksPort = GlobalConfig.inboundConfig.useSocks ? GlobalConfig.inboundConfig.socks_port : 0;
             //
-            SetSystemProxy(proxyAddress, httpPort, socksPort);
+            SetSystemProxy(proxyAddress, httpPort, socksPort, usePAC);
             hTray.showMessage("Qv2ray", tr("System proxy configured."));
         }
     }