diff --git a/pkg/collector/hwmon.go b/pkg/collector/hwmon.go
index f1ec9f09..77ff9533 100644
--- a/pkg/collector/hwmon.go
+++ b/pkg/collector/hwmon.go
@@ -39,6 +39,7 @@ type hwmon struct {
 	sensors  []hwmonSensor
 	name     string
 	chipName string
+	index    string
 }
 
 type hwmonSensor struct {
@@ -63,23 +64,23 @@ func NewHwmonCollector(logger *slog.Logger) (Collector, error) {
 
 	metricDesc["power_input"] = prometheus.NewDesc(
 		prometheus.BuildFQName(Namespace, hwmonCollectorSubSystem, "power_current_watts"),
-		"Current Power consumption in watts", []string{"hostname", "sensor", "chip", "chip_name"}, nil,
+		"Current Power consumption in watts", []string{"hostname", "index", "sensor", "chip", "chip_name"}, nil,
 	)
 	metricDesc["power_input_lowest"] = prometheus.NewDesc(
 		prometheus.BuildFQName(Namespace, hwmonCollectorSubSystem, "power_min_watts"),
-		"Minimum Power consumption in watts", []string{"hostname", "sensor", "chip", "chip_name"}, nil,
+		"Minimum Power consumption in watts", []string{"hostname", "index", "sensor", "chip", "chip_name"}, nil,
 	)
 	metricDesc["power_input_highest"] = prometheus.NewDesc(
 		prometheus.BuildFQName(Namespace, hwmonCollectorSubSystem, "power_max_watts"),
-		"Maximum Power consumption in watts", []string{"hostname", "sensor", "chip", "chip_name"}, nil,
+		"Maximum Power consumption in watts", []string{"hostname", "index", "sensor", "chip", "chip_name"}, nil,
 	)
 	metricDesc["power_average"] = prometheus.NewDesc(
 		prometheus.BuildFQName(Namespace, hwmonCollectorSubSystem, "power_avg_watts"),
-		"Average Power consumption in watts", []string{"hostname", "sensor", "chip", "chip_name"}, nil,
+		"Average Power consumption in watts", []string{"hostname", "index", "sensor", "chip", "chip_name"}, nil,
 	)
 	metricDesc["energy_input"] = prometheus.NewDesc(
 		prometheus.BuildFQName(Namespace, hwmonCollectorSubSystem, "energy_current_joules"),
-		"Current Energy consumption in joules", []string{"hostname", "sensor", "chip", "chip_name"}, nil,
+		"Current Energy consumption in joules", []string{"hostname", "index", "sensor", "chip", "chip_name"}, nil,
 	)
 
 	hwmonCollector := &hwmonCollector{
@@ -116,6 +117,7 @@ func (c *hwmonCollector) Update(ch chan<- prometheus.Metric) error {
 						prometheus.GaugeValue,
 						val/1000000.0,
 						c.hostname,
+						mon.index,
 						fmt.Sprintf("%s%d", sensor.sensorType, sensor.sensorNum),
 						mon.name,
 						mon.chipName,
@@ -215,6 +217,11 @@ func getHwmon(dir string) (*hwmon, error) {
 
 	hwmon := &hwmon{dir: dir, name: hwmonName, sensors: sensors}
 
+	// Extract index from directory name (e.g., "hwmon1" -> "1")
+	if index, ok := strings.CutPrefix(filepath.Base(dir), "hwmon"); ok {
+		hwmon.index = index
+	}
+
 	hwmonChipName, err := hwmonHumanReadableChipName(dir)
 	if err == nil {
 		hwmon.chipName = hwmonChipName
diff --git a/pkg/collector/hwmon_test.go b/pkg/collector/hwmon_test.go
index c65cd7ae..e7678adf 100644
--- a/pkg/collector/hwmon_test.go
+++ b/pkg/collector/hwmon_test.go
@@ -90,6 +90,9 @@ func TestHwmonMetrics(t *testing.T) {
 				gotValues[mon.name][sensor.sensorProperty][fmt.Sprintf("%s%d", sensor.sensorType, sensor.sensorNum)] = val
 			}
 		}
+
+		// Verify index is extracted (should not be empty for hwmon devices)
+		assert.NotEmpty(t, mon.index, "Monitor index should not be empty")
 	}
 
 	assert.Equal(t, expectedHwmonValues, gotValues)
diff --git a/pkg/collector/testdata/output/exporter/e2e-test-cgroupsv2-amd-ipmitool-output.txt b/pkg/collector/testdata/output/exporter/e2e-test-cgroupsv2-amd-ipmitool-output.txt
index 19888b2c..33d6720a 100644
--- a/pkg/collector/testdata/output/exporter/e2e-test-cgroupsv2-amd-ipmitool-output.txt
+++ b/pkg/collector/testdata/output/exporter/e2e-test-cgroupsv2-amd-ipmitool-output.txt
@@ -157,24 +157,24 @@ ceems_cpu_seconds_total{hostname="",mode="user"} 3018.54
 # TYPE ceems_exporter_build_info gauge
 # HELP ceems_hwmon_energy_current_joules Current Energy consumption in joules
 # TYPE ceems_hwmon_energy_current_joules gauge
-ceems_hwmon_energy_current_joules{chip="socket",chip_name="socket",hostname="",sensor="energy1"} 22323
-ceems_hwmon_energy_current_joules{chip="socket",chip_name="socket",hostname="",sensor="energy2"} 9509
+ceems_hwmon_energy_current_joules{chip="socket",chip_name="socket",hostname="",index="4",sensor="energy1"} 22323
+ceems_hwmon_energy_current_joules{chip="socket",chip_name="socket",hostname="",index="4",sensor="energy2"} 9509
 # HELP ceems_hwmon_power_avg_watts Average Power consumption in watts
 # TYPE ceems_hwmon_power_avg_watts gauge
-ceems_hwmon_power_avg_watts{chip="socket",chip_name="socket",hostname="",sensor="power1"} 234
-ceems_hwmon_power_avg_watts{chip="socket",chip_name="socket",hostname="",sensor="power2"} 120
+ceems_hwmon_power_avg_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power1"} 234
+ceems_hwmon_power_avg_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power2"} 120
 # HELP ceems_hwmon_power_current_watts Current Power consumption in watts
 # TYPE ceems_hwmon_power_current_watts gauge
-ceems_hwmon_power_current_watts{chip="socket",chip_name="socket",hostname="",sensor="power1"} 270
-ceems_hwmon_power_current_watts{chip="socket",chip_name="socket",hostname="",sensor="power2"} 156
+ceems_hwmon_power_current_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power1"} 270
+ceems_hwmon_power_current_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power2"} 156
 # HELP ceems_hwmon_power_max_watts Maximum Power consumption in watts
 # TYPE ceems_hwmon_power_max_watts gauge
-ceems_hwmon_power_max_watts{chip="socket",chip_name="socket",hostname="",sensor="power1"} 328
-ceems_hwmon_power_max_watts{chip="socket",chip_name="socket",hostname="",sensor="power2"} 190
+ceems_hwmon_power_max_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power1"} 328
+ceems_hwmon_power_max_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power2"} 190
 # HELP ceems_hwmon_power_min_watts Minimum Power consumption in watts
 # TYPE ceems_hwmon_power_min_watts gauge
-ceems_hwmon_power_min_watts{chip="socket",chip_name="socket",hostname="",sensor="power1"} 65
-ceems_hwmon_power_min_watts{chip="socket",chip_name="socket",hostname="",sensor="power2"} 46
+ceems_hwmon_power_min_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power1"} 65
+ceems_hwmon_power_min_watts{chip="socket",chip_name="socket",hostname="",index="4",sensor="power2"} 46
 # HELP ceems_ipmi_dcmi_power_avg_watts Average power consumption reported by DCMI in watts
 # TYPE ceems_ipmi_dcmi_power_avg_watts gauge
 ceems_ipmi_dcmi_power_avg_watts{hostname=""} 2567