diff --git a/firewall/firewall_darwin.go b/firewall/firewall_darwin.go
index cb6d46d4..d141bad3 100644
--- a/firewall/firewall_darwin.go
+++ b/firewall/firewall_darwin.go
@@ -22,6 +22,7 @@ type PfFirewall struct {
 	iface      *network.Endpoint
 	filename   string
 	forwarding bool
+	enabled    bool
 }
 
 func Make(iface *network.Endpoint) FirewallManager {