diff --git a/client/macos/Runner/MainFlutterWindow.swift b/client/macos/Runner/MainFlutterWindow.swift
index d688efd..06cb00f 100644
--- a/client/macos/Runner/MainFlutterWindow.swift
+++ b/client/macos/Runner/MainFlutterWindow.swift
@@ -14,10 +14,9 @@ class MainFlutterWindow: NSWindow {
 
     RegisterGeneratedPlugins(registry: flutterViewController)
 
-    // P1 方案B:VPN 原生控制通道。把 VpnChannel.swift 加入 Runner target(Compile Sources)
-    // 后,解开下一行注册(见 docs/p1-macos-system-extension.md §3)。在此之前保持注释,
-    // 以免引用未编译符号破坏 Runner 构建。
-    // VpnChannel.register(with: flutterViewController.registrar(forPlugin: "VpnChannel"))
+    // P1 方案B:VPN 原生控制通道(NETunnelProviderManager 启停 PacketTunnel)。
+    // 需 VpnChannel.swift 已加入 Runner target 的 Compile Sources。
+    VpnChannel.register(with: flutterViewController.registrar(forPlugin: "VpnChannel"))
 
     super.awakeFromNib()
   }