diff --git a/nginx_vts_exporter.go b/nginx_vts_exporter.go
index a556354..8ef7376 100644
--- a/nginx_vts_exporter.go
+++ b/nginx_vts_exporter.go
@@ -187,7 +187,7 @@ func NewExporter(uri string) *Exporter {
 			"requestMsec": newServerMetric("requestMsec", "average of request processing times in milliseconds", []string{"host"}),
 		},
 		upstreamMetrics: map[string]*prometheus.Desc{
-			"requests":     newUpstreamMetric("requests", "requests counter", []string{"upstream", "code"}),
+			"requests":     newUpstreamMetric("requests", "requests counter", []string{"upstream", "code", "backend"}),
 			"bytes":        newUpstreamMetric("bytes", "request/response bytes", []string{"upstream", "direction"}),
 			"responseMsec": newUpstreamMetric("responseMsec", "average of only upstream/backend response processing times in milliseconds", []string{"upstream", "backend"}),
 			"requestMsec":  newUpstreamMetric("requestMsec", "average of request processing times in milliseconds", []string{"upstream", "backend"}),
@@ -295,14 +295,14 @@ func (e *Exporter) Collect(ch chan<- prometheus.Metric) {
 
 			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["responseMsec"], prometheus.GaugeValue, float64(s.ResponseMsec), name, s.Server)
 			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requestMsec"], prometheus.GaugeValue, float64(s.RequestMsec), name, s.Server)
-		}
 
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, total, name, "total")
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, one, name, "1xx")
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, two, name, "2xx")
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, three, name, "3xx")
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, four, name, "4xx")
-		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, five, name, "5xx")
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, total, name, "total", s.Server)
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, one, name, "1xx", s.Server)
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, two, name, "2xx", s.Server)
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, three, name, "3xx", s.Server)
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, four, name, "4xx", s.Server)
+			ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["requests"], prometheus.CounterValue, five, name, "5xx", s.Server)
+		}
 
 		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["bytes"], prometheus.CounterValue, inbytes, name, "in")
 		ch <- prometheus.MustNewConstMetric(e.upstreamMetrics["bytes"], prometheus.CounterValue, outbytes, name, "out")