diff --git a/sys/prctl.go b/sys/prctl.go
index 63c418db9..aa1a4ad38 100644
--- a/sys/prctl.go
+++ b/sys/prctl.go
@@ -1,7 +1,6 @@
 // +build linux
 
-// Package osutils provide access to the Get Child and Set Child prctl
-// flags.
+// Package sys provides access to the Get Child and Set Child prctl flags.
 // See http://man7.org/linux/man-pages/man2/prctl.2.html
 package sys
 
@@ -11,30 +10,14 @@ import (
 	"golang.org/x/sys/unix"
 )
 
-// PR_SET_CHILD_SUBREAPER allows setting the child subreaper.
-// If arg2 is nonzero, set the "child subreaper" attribute of the
-// calling process; if arg2 is zero, unset the attribute.  When a
-// process is marked as a child subreaper, all of the children
-// that it creates, and their descendants, will be marked as
-// having a subreaper.  In effect, a subreaper fulfills the role
-// of init(1) for its descendant processes.  Upon termination of
-// a process that is orphaned (i.e., its immediate parent has
-// already terminated) and marked as having a subreaper, the
-// nearest still living ancestor subreaper will receive a SIGCHLD
-// signal and be able to wait(2) on the process to discover its
-// termination status.
-const prSetChildSubreaper = 36
-
-// PR_GET_CHILD_SUBREAPER allows retrieving the current child
-// subreaper.
-// Returns the "child subreaper" setting of the caller, in the
-// location pointed to by (int *) arg2.
-const prGetChildSubreaper = 37
-
 // GetSubreaper returns the subreaper setting for the calling process
 func GetSubreaper() (int, error) {
 	var i uintptr
-	if _, _, err := unix.RawSyscall(unix.SYS_PRCTL, prGetChildSubreaper, uintptr(unsafe.Pointer(&i)), 0); err != 0 {
+	// PR_GET_CHILD_SUBREAPER allows retrieving the current child
+	// subreaper.
+	// Returns the "child subreaper" setting of the caller, in the
+	// location pointed to by (int *) arg2.
+	if err := unix.Prctl(unix.PR_GET_CHILD_SUBREAPER, uintptr(unsafe.Pointer(&i)), 0, 0, 0); err != nil {
 		return -1, err
 	}
 	return int(i), nil
@@ -42,8 +25,17 @@ func GetSubreaper() (int, error) {
 
 // SetSubreaper sets the value i as the subreaper setting for the calling process
 func SetSubreaper(i int) error {
-	if _, _, err := unix.RawSyscall(unix.SYS_PRCTL, prSetChildSubreaper, uintptr(i), 0); err != 0 {
-		return err
-	}
-	return nil
+	// PR_SET_CHILD_SUBREAPER allows setting the child subreaper.
+	// If arg2 is nonzero, set the "child subreaper" attribute of the
+	// calling process; if arg2 is zero, unset the attribute.  When a
+	// process is marked as a child subreaper, all of the children
+	// that it creates, and their descendants, will be marked as
+	// having a subreaper.  In effect, a subreaper fulfills the role
+	// of init(1) for its descendant processes.  Upon termination of
+	// a process that is orphaned (i.e., its immediate parent has
+	// already terminated) and marked as having a subreaper, the
+	// nearest still living ancestor subreaper will receive a SIGCHLD
+	// signal and be able to wait(2) on the process to discover its
+	// termination status.
+	return unix.Prctl(unix.PR_SET_CHILD_SUBREAPER, uintptr(i), 0, 0, 0)
 }