diff --git a/doGui.go b/doGui.go
index a3b5dc3..3fb98a8 100644
--- a/doGui.go
+++ b/doGui.go
@@ -7,6 +7,7 @@ package main
 
 import (
 	"os"
+	"strings"
 	"time"
 
 	"go.wit.com/gui"
@@ -130,6 +131,14 @@ func makeDropletsWindow(pb *virtpb.Droplets) *GenericWindow {
 		}
 		return "UNKNOWN"
 	})
+	t.AddStringFunc("mac addr", func(d *virtpb.Droplet) string {
+		var macs []string
+		for _, n := range d.Networks {
+			macs = append(macs, n.Mac)
+		}
+		tmp := strings.Join(macs, "\n")
+		return strings.TrimSpace(tmp)
+	})
 	/*
 		t.AddStringFunc("zood", func(m *zoopb.Machine) string {
 			return findVersion(m, "zood")