diff --git a/cmd/prometheus.go b/cmd/prometheus.go
index d1ecd50..90b5cfb 100644
--- a/cmd/prometheus.go
+++ b/cmd/prometheus.go
@@ -84,6 +84,7 @@ func prometheus(p string, services map[netip.Addr][]Serv, summary Summary, vips
 
 			for _, d := range s.Destinations {
 				real := fmt.Sprintf("%s:%d", d.Address, d.Port)
+				stat := d.Stats
 				up := zeroone(d.Up)
 
 				r = metric(r, p+`_backend_sessions{service="%s",name="%s",backend="%s"} %d`, serv, name, real, stat.Current)