diff --git a/internal/metrics/systeminfo/system_info.go b/internal/metrics/systeminfo/system_info.go
index 3a2ec761..02f47a7e 100644
--- a/internal/metrics/systeminfo/system_info.go
+++ b/internal/metrics/systeminfo/system_info.go
@@ -172,12 +172,12 @@ func (s *SystemInfo) collectDisksInfo(ctx context.Context, lastResult *SystemInf
 	s.Disks = make(map[string]disk.UsageStat, len(partitions))
 	errs := gperr.NewBuilder("failed to get disks info")
 	for _, partition := range partitions {
-		diskInfo, err := disk.UsageWithContext(ctx, partition.Mountpoint.Value())
+		diskInfo, err := disk.UsageWithContext(ctx, partition.Mountpoint)
 		if err != nil {
 			errs.Add(err)
 			continue
 		}
-		s.Disks[partition.Device.Value()] = diskInfo
+		s.Disks[partition.Device] = diskInfo
 	}
 
 	if errs.HasError() {
@@ -320,7 +320,7 @@ func aggregate(entries []*SystemInfo, query url.Values) (total int, result Aggre
 			}
 			m := make(map[string]any, len(entry.Sensors)+1)
 			for _, sensor := range entry.Sensors {
-				m[sensor.SensorKey.Value()] = sensor.Temperature
+				m[sensor.SensorKey] = sensor.Temperature
 			}
 			m["timestamp"] = entry.Timestamp
 			aggregated = append(aggregated, m)
diff --git a/internal/metrics/systeminfo/system_info_test.go b/internal/metrics/systeminfo/system_info_test.go
index 5e464294..d41c6a97 100644
--- a/internal/metrics/systeminfo/system_info_test.go
+++ b/internal/metrics/systeminfo/system_info_test.go
@@ -11,7 +11,6 @@ import (
 	"github.com/shirou/gopsutil/v4/mem"
 	"github.com/shirou/gopsutil/v4/net"
 	"github.com/shirou/gopsutil/v4/sensors"
-	"github.com/yusing/goutils/intern"
 	expect "github.com/yusing/goutils/testing"
 )
 
@@ -27,21 +26,21 @@ var (
 		},
 		Disks: map[string]disk.UsageStat{
 			"sda": {
-				Path:   intern.Make("/"),
-				Fstype: intern.Make("ext4"),
+				Path:   "/",
+				Fstype: "ext4",
 				Free:   250000000000,
 				Used:   250000000000,
 			},
 			"nvme0n1": {
-				Path:   intern.Make("/"),
-				Fstype: intern.Make("zfs"),
+				Path:   "/",
+				Fstype: "zfs",
 				Free:   250000000000,
 				Used:   250000000000,
 			},
 		},
 		DisksIO: map[string]*disk.IOCountersStat{
 			"media": {
-				Name:       intern.Make("media"),
+				Name:       "media",
 				ReadBytes:  1000000,
 				WriteBytes: 2000000,
 				IOCountersStatExtra: disk.IOCountersStatExtra{
@@ -51,7 +50,7 @@ var (
 				},
 			},
 			"nvme0n1": {
-				Name:       intern.Make("nvme0n1"),
+				Name:       "nvme0n1",
 				ReadBytes:  1000000,
 				WriteBytes: 2000000,
 				IOCountersStatExtra: disk.IOCountersStatExtra{
@@ -69,11 +68,11 @@ var (
 		},
 		Sensors: []sensors.TemperatureStat{
 			{
-				SensorKey:   intern.Make("cpu_temp"),
+				SensorKey:   "cpu_temp",
 				Temperature: 30.0,
 			},
 			{
-				SensorKey:   intern.Make("gpu_temp"),
+				SensorKey:   "gpu_temp",
 				Temperature: 40.0,
 			},
 		},