diff --git a/transport/wireguard/device_system.go b/transport/wireguard/device_system.go
index 2c16c53d..36c270f9 100644
--- a/transport/wireguard/device_system.go
+++ b/transport/wireguard/device_system.go
@@ -57,7 +57,7 @@ func NewSystemDevice(router adapter.Router, interfaceName string, localPrefixes
 		inet4Addresses: inet4Addresses,
 		inet6Addresses: inet6Addresses,
 		gso:            gso,
-		events:         make(chan wgTun.Event),
+		events:         make(chan wgTun.Event, 1),
 	}, nil
 }