diff --git a/src/main.cpp b/src/main.cpp
index bc309fb..bf07a8c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -10,6 +10,7 @@ DWIDGET_USE_NAMESPACE
 int main(int argc, char *argv[])
 {
     DApplication::loadDXcbPlugin();  // 让 bar 处在标题栏中
+    DApplication::setAttribute(Qt::AA_EnableHighDpiScaling);    // 开启 Hidpi 支持
     DApplication a(argc, argv);
 
     a.setAttribute(Qt::AA_UseHighDpiPixmaps);