diff --git a/weed/stats/metrics.go b/weed/stats/metrics.go
index 4147fd067..b7f184e87 100644
--- a/weed/stats/metrics.go
+++ b/weed/stats/metrics.go
@@ -60,7 +60,7 @@ var (
 		prometheus.GaugeOpts{
 			Namespace: "SeaweedFS",
 			Subsystem: "volumeServer",
-			Name:      "volumes",
+			Name:      "max_volumes",
 			Help:      "Maximum number of volumes.",
 		})