diff --git a/backend/agent/promkeaexporter.go b/backend/agent/promkeaexporter.go
index 3a3c29438..385a98a01 100644
--- a/backend/agent/promkeaexporter.go
+++ b/backend/agent/promkeaexporter.go
@@ -521,37 +521,37 @@ func NewPromKeaExporter(host string, port int, interval time.Duration, enablePer
 			Subsystem: "dhcp4",
 			Name:      "addresses_assigned_total",
 			Help:      "Assigned addresses",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr4StatsMap["declined-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp4",
 			Name:      "addresses_declined_total",
 			Help:      "Declined counts",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr4StatsMap["reclaimed-declined-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp4",
 			Name:      "addresses_declined_reclaimed_total",
 			Help:      "Declined addresses that were reclaimed",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr4StatsMap["reclaimed-leases"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp4",
 			Name:      "addresses_reclaimed_total",
 			Help:      "Expired addresses that were reclaimed",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr4StatsMap["total-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp4",
 			Name:      "addresses_total",
 			Help:      "Size of subnet address pool",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr4StatsMap["cumulative-assigned-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp4",
 			Name:      "cumulative_addresses_assigned_total",
 			Help:      "Cumulative number of assigned addresses since server startup",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 
 		// addresses dhcp6
 		adr6StatsMap := make(map[string]*prometheus.GaugeVec)
@@ -560,55 +560,55 @@ func NewPromKeaExporter(host string, port int, interval time.Duration, enablePer
 			Subsystem: "dhcp6",
 			Name:      "na_total",
 			Help:      "'Size of non-temporary address pool",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["assigned-nas"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "na_assigned_total",
 			Help:      "Assigned non-temporary addresses (IA_NA)",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["total-pds"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "pd_total",
 			Help:      "Size of prefix delegation pool",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["assigned-pds"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "pd_assigned_total",
 			Help:      "Assigned prefix delegations (IA_PD)",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["reclaimed-leases"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "addresses_reclaimed_total",
 			Help:      "Expired addresses that were reclaimed",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["declined-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "addresses_declined_total",
 			Help:      "Declined counts",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["reclaimed-declined-addresses"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "addresses_declined_reclaimed_total",
 			Help:      "Declined addresses that were reclaimed",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["cumulative-assigned-nas"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "cumulative_nas_assigned_total",
 			Help:      "Cumulative number of assigned NA addresses since server startup",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 		adr6StatsMap["cumulative-assigned-pds"] = factory.NewGaugeVec(prometheus.GaugeOpts{
 			Namespace: AppTypeKea,
 			Subsystem: "dhcp6",
 			Name:      "cumulative_pds_assigned_total",
 			Help:      "Cumulative number of assigned PD prefixes since server startup",
-		}, []string{"subnet", "id", "prefix"})
+		}, []string{"subnet", "subnet_id", "prefix"})
 
 		pke.Adr4StatsMap = adr4StatsMap
 		pke.Adr6StatsMap = adr6StatsMap
@@ -756,7 +756,7 @@ func (pke *PromKeaExporter) setDaemonStats(dhcpStatMap *map[string]*prometheus.G
 			subnetIDRaw := matches[1]
 			metricName := matches[2]
 
-			labels := prometheus.Labels{"id": subnetIDRaw, "prefix": ""}
+			labels := prometheus.Labels{"subnet_id": subnetIDRaw, "prefix": ""}
 			subnetID, err := strconv.Atoi(subnetIDRaw)
 			legacyLabel := subnetIDRaw // Subnet ID or prefix if available.
 			if err == nil {
diff --git a/backend/agent/promkeaexporter_test.go b/backend/agent/promkeaexporter_test.go
index fe2b4cb2b..f4ac0cd6f 100644
--- a/backend/agent/promkeaexporter_test.go
+++ b/backend/agent/promkeaexporter_test.go
@@ -87,9 +87,9 @@ func TestPromKeaExporterStart(t *testing.T) {
 	// check if assigned-addresses is 13
 	metric, _ := pke.Adr4StatsMap["assigned-addresses"].GetMetricWith(
 		prometheus.Labels{
-			"subnet": "7",
-			"id":     "7",
-			"prefix": "",
+			"subnet":    "7",
+			"subnet_id": "7",
+			"prefix":    "",
 		},
 	)
 	require.Equal(t, 13.0, testutil.ToFloat64(metric))
@@ -289,9 +289,9 @@ func TestSubnetPrefixInPrometheusMetrics(t *testing.T) {
 
 	metric, _ := pke.Adr4StatsMap["assigned-addresses"].GetMetricWith(
 		prometheus.Labels{
-			"id":     "7",
-			"prefix": "10.0.0.0/8",
-			"subnet": "10.0.0.0/8",
+			"subnet_id": "7",
+			"prefix":    "10.0.0.0/8",
+			"subnet":    "10.0.0.0/8",
 		},
 	)