diff --git a/firewall/firewall_darwin.go b/firewall/firewall_darwin.go
index bafde0ff..ac91b370 100644
--- a/firewall/firewall_darwin.go
+++ b/firewall/firewall_darwin.go
@@ -11,6 +11,8 @@ import (
 
 	"github.com/bettercap/bettercap/core"
 	"github.com/bettercap/bettercap/network"
+
+	"github.com/evilsocket/islazy/str"
 )
 
 var (