diff --git a/disk/disk_freebsd.go b/disk/disk_freebsd.go
index 4ee8e66..5180b88 100644
--- a/disk/disk_freebsd.go
+++ b/disk/disk_freebsd.go
@@ -8,7 +8,6 @@ import (
 	"encoding/binary"
 	"path"
 	"strconv"
-	"unsafe"
 
 	"golang.org/x/sys/unix"
 
@@ -28,8 +27,8 @@ func PartitionsWithContext(ctx context.Context, all bool) ([]PartitionStat, erro
 		return ret, err
 	}
 
-	fs := make([]Statfs, count)
-	if _, err = Getfsstat(fs, unix.MNT_WAIT); err != nil {
+	fs := make([]unix.Statfs_t, count)
+	if _, err = unix.Getfsstat(fs, unix.MNT_WAIT); err != nil {
 		return ret, err
 	}
 
@@ -158,27 +157,6 @@ func (b Bintime) Compute() float64 {
 
 // BT2LD(time)     ((long double)(time).sec + (time).frac * BINTIME_SCALE)
 
-// Getfsstat is borrowed from pkg/syscall/syscall_freebsd.go
-// change Statfs_t to Statfs in order to get more information
-func Getfsstat(buf []Statfs, flags int) (n int, err error) {
-	return GetfsstatWithContext(context.Background(), buf, flags)
-}
-
-func GetfsstatWithContext(ctx context.Context, buf []Statfs, flags int) (n int, err error) {
-	var _p0 unsafe.Pointer
-	var bufsize uintptr
-	if len(buf) > 0 {
-		_p0 = unsafe.Pointer(&buf[0])
-		bufsize = unsafe.Sizeof(Statfs{}) * uintptr(len(buf))
-	}
-	r0, _, e1 := unix.Syscall(unix.SYS_GETFSSTAT, uintptr(_p0), bufsize, uintptr(flags))
-	n = int(r0)
-	if e1 != 0 {
-		err = e1
-	}
-	return
-}
-
 func parseDevstat(buf []byte) (Devstat, error) {
 	var ds Devstat
 	br := bytes.NewReader(buf)
diff --git a/disk/disk_freebsd_386.go b/disk/disk_freebsd_386.go
index 5f39aa5..e2793a4 100644
--- a/disk/disk_freebsd_386.go
+++ b/disk/disk_freebsd_386.go
@@ -29,34 +29,6 @@ type (
 	_C_long_double int64
 )
 
-type Statfs struct {
-	Version     uint32
-	Type        uint32
-	Flags       uint64
-	Bsize       uint64
-	Iosize      uint64
-	Blocks      uint64
-	Bfree       uint64
-	Bavail      int64
-	Files       uint64
-	Ffree       int64
-	Syncwrites  uint64
-	Asyncwrites uint64
-	Syncreads   uint64
-	Asyncreads  uint64
-	Spare       [10]uint64
-	Namemax     uint32
-	Owner       uint32
-	Fsid        Fsid
-	Charspare   [80]int8
-	Fstypename  [16]int8
-	Mntfromname [88]int8
-	Mntonname   [88]int8
-}
-type Fsid struct {
-	Val [2]int32
-}
-
 type Devstat struct {
 	Sequence0     uint32
 	Allocated     int32
diff --git a/disk/disk_freebsd_amd64.go b/disk/disk_freebsd_amd64.go
index 752a35f..e9613dc 100644
--- a/disk/disk_freebsd_amd64.go
+++ b/disk/disk_freebsd_amd64.go
@@ -29,34 +29,6 @@ type (
 	_C_long_double int64
 )
 
-type Statfs struct {
-	Version     uint32
-	Type        uint32
-	Flags       uint64
-	Bsize       uint64
-	Iosize      uint64
-	Blocks      uint64
-	Bfree       uint64
-	Bavail      int64
-	Files       uint64
-	Ffree       int64
-	Syncwrites  uint64
-	Asyncwrites uint64
-	Syncreads   uint64
-	Asyncreads  uint64
-	Spare       [10]uint64
-	Namemax     uint32
-	Owner       uint32
-	Fsid        Fsid
-	Charspare   [80]int8
-	Fstypename  [16]int8
-	Mntfromname [88]int8
-	Mntonname   [88]int8
-}
-type Fsid struct {
-	Val [2]int32
-}
-
 type Devstat struct {
 	Sequence0     uint32
 	Allocated     int32
diff --git a/disk/disk_freebsd_arm.go b/disk/disk_freebsd_arm.go
index 5f39aa5..e2793a4 100644
--- a/disk/disk_freebsd_arm.go
+++ b/disk/disk_freebsd_arm.go
@@ -29,34 +29,6 @@ type (
 	_C_long_double int64
 )
 
-type Statfs struct {
-	Version     uint32
-	Type        uint32
-	Flags       uint64
-	Bsize       uint64
-	Iosize      uint64
-	Blocks      uint64
-	Bfree       uint64
-	Bavail      int64
-	Files       uint64
-	Ffree       int64
-	Syncwrites  uint64
-	Asyncwrites uint64
-	Syncreads   uint64
-	Asyncreads  uint64
-	Spare       [10]uint64
-	Namemax     uint32
-	Owner       uint32
-	Fsid        Fsid
-	Charspare   [80]int8
-	Fstypename  [16]int8
-	Mntfromname [88]int8
-	Mntonname   [88]int8
-}
-type Fsid struct {
-	Val [2]int32
-}
-
 type Devstat struct {
 	Sequence0     uint32
 	Allocated     int32
diff --git a/disk/disk_freebsd_arm64.go b/disk/disk_freebsd_arm64.go
index d03f1f6..1384131 100644
--- a/disk/disk_freebsd_arm64.go
+++ b/disk/disk_freebsd_arm64.go
@@ -31,34 +31,6 @@ type (
 	_C_long_double int64
 )
 
-type Statfs struct {
-	Version     uint32
-	Type        uint32
-	Flags       uint64
-	Bsize       uint64
-	Iosize      uint64
-	Blocks      uint64
-	Bfree       uint64
-	Bavail      int64
-	Files       uint64
-	Ffree       int64
-	Syncwrites  uint64
-	Asyncwrites uint64
-	Syncreads   uint64
-	Asyncreads  uint64
-	Spare       [10]uint64
-	Namemax     uint32
-	Owner       uint32
-	Fsid        Fsid
-	Charspare   [80]uint8
-	Fstypename  [16]int8
-	Mntfromname [1024]int8
-	Mntonname   [1024]int8
-}
-type Fsid struct {
-	Val [2]int32
-}
-
 type Devstat struct {
 	Sequence0     uint32
 	Allocated     int32
diff --git a/disk/types_freebsd.go b/disk/types_freebsd.go
index 525e9af..4cf6017 100644
--- a/disk/types_freebsd.go
+++ b/disk/types_freebsd.go
@@ -58,8 +58,5 @@ type (
 	_C_long_double C.longlong
 )
 
-type Statfs C.struct_statfs
-type Fsid C.struct_fsid
-
 type Devstat C.struct_devstat
 type Bintime C.struct_bintime