diff --git a/tools/utils/shm/fallocate_darwin.go b/tools/utils/shm/fallocate_darwin.go
index 62b748bc8..eeb5c8a85 100644
--- a/tools/utils/shm/fallocate_darwin.go
+++ b/tools/utils/shm/fallocate_darwin.go
@@ -3,9 +3,12 @@
 package shm
 
 import (
+	"errors"
 	"fmt"
 	"syscall"
 	"unsafe"
+
+	"golang.org/x/sys/unix"
 )
 
 var _ = fmt.Print
@@ -15,15 +18,12 @@ func Fallocate_simple(fd int, size int64) (err error) {
 		Flags:   syscall.F_ALLOCATEALL,
 		Posmode: syscall.F_PEOFPOSMODE,
 		Offset:  0,
-		Length:  int64(size),
+		Length:  size,
 	}
 
 	for {
-		if _, _, err = syscall.Syscall(syscall.SYS_FCNTL, uintptr(out.f.Fd()), syscall.F_PREALLOCATE, uintptr(unsafe.Pointer(store))); !errors.Is(err, unix.EINTR) {
-			if err != 0 {
-				return err
-			}
-			return nil
+		if _, _, err = syscall.Syscall(syscall.SYS_FCNTL, uintptr(fd), syscall.F_PREALLOCATE, uintptr(unsafe.Pointer(store))); !errors.Is(err, unix.EINTR) {
+			return err
 		}
 	}
 }