diff --git a/pkg/hostman/diskutils/qemu_kvm/lvm.go b/pkg/hostman/diskutils/qemu_kvm/lvm.go
index 01dda5dca92..2423ef9f581 100644
--- a/pkg/hostman/diskutils/qemu_kvm/lvm.go
+++ b/pkg/hostman/diskutils/qemu_kvm/lvm.go
@@ -92,7 +92,7 @@ func (d *LocalDiskDriver) getVgLvs(vg string) ([]LvProps, error) {
 	if len(res.Report) != 1 {
 		return nil, errors.Errorf("unexpect res %v", res)
 	}
-	lvs := make([]LvProps, len(res.Report[0].LV))
+	lvs := make([]LvProps, 0, len(res.Report[0].LV))
 	for i := 0; i < len(res.Report[0].LV); i++ {
 		if res.Report[0].LV[i].LVName == "" {
 			continue
diff --git a/pkg/hostman/storageman/lvmutils/lvmutils.go b/pkg/hostman/storageman/lvmutils/lvmutils.go
index 56e675d28f1..b918e142b72 100644
--- a/pkg/hostman/storageman/lvmutils/lvmutils.go
+++ b/pkg/hostman/storageman/lvmutils/lvmutils.go
@@ -47,7 +47,7 @@ func GetLvNames(vg string) ([]string, error) {
 	if len(res.Report) != 1 {
 		return nil, errors.Errorf("unexpect res %v", res)
 	}
-	lvNames := make([]string, len(res.Report[0].LV))
+	lvNames := make([]string, 0, len(res.Report[0].LV))
 	for i := 0; i < len(res.Report[0].LV); i++ {
 		lvNames = append(lvNames, res.Report[0].LV[i].LVName)
 	}