diff --git a/src/ui/flutter_app/macos/Runner/MainFlutterWindow.swift b/src/ui/flutter_app/macos/Runner/MainFlutterWindow.swift
index 14e40c37a..db898bcfc 100755
--- a/src/ui/flutter_app/macos/Runner/MainFlutterWindow.swift
+++ b/src/ui/flutter_app/macos/Runner/MainFlutterWindow.swift
@@ -48,6 +48,8 @@ class MainFlutterWindow: NSWindow {
     self.contentViewController = flutterViewController
     self.setFrame(windowFrame, display: true)
 
+    self.setContentSize(NSSize(width: 540, height: 960))
+
     RegisterGeneratedPlugins(registry: flutterViewController)
 
     super.awakeFromNib()