diff --git a/push_screen.py b/push_screen.py
index 9f0cb61..850f6e6 100644
--- a/push_screen.py
+++ b/push_screen.py
@@ -62,7 +62,7 @@ class MainWindow(QMainWindow):
     def __init__(self):
         super().__init__()
         self.setWindowTitle("投屏源控制")
-        self.setFixedSize(500, 350)
+        self.setFixedSize(520, 420)
 
         self.status_bar = QStatusBar()
         self.setStatusBar(self.status_bar)