diff --git a/pkg/libcontainer/nsinit/exec.go b/pkg/libcontainer/nsinit/exec.go
index 0813470a90..f266303f8c 100644
--- a/pkg/libcontainer/nsinit/exec.go
+++ b/pkg/libcontainer/nsinit/exec.go
@@ -56,7 +56,7 @@ func Exec(container *libcontainer.Container, term Terminal, rootfs, dataPath str
 	}
 	if err := WritePid(dataPath, command.Process.Pid, started); err != nil {
 		command.Process.Kill()
-		command.Process.Wait()
+		command.Wait()
 		return -1, err
 	}
 	defer DeletePid(dataPath)
@@ -66,7 +66,7 @@ func Exec(container *libcontainer.Container, term Terminal, rootfs, dataPath str
 	cleaner, err := SetupCgroups(container, command.Process.Pid)
 	if err != nil {
 		command.Process.Kill()
-		command.Process.Wait()
+		command.Wait()
 		return -1, err
 	}
 	if cleaner != nil {
@@ -75,7 +75,7 @@ func Exec(container *libcontainer.Container, term Terminal, rootfs, dataPath str
 
 	if err := InitializeNetworking(container, command.Process.Pid, syncPipe); err != nil {
 		command.Process.Kill()
-		command.Process.Wait()
+		command.Wait()
 		return -1, err
 	}
 
diff --git a/pkg/libcontainer/nsinit/init.go b/pkg/libcontainer/nsinit/init.go
index 509f3a2796..8139865a02 100644
--- a/pkg/libcontainer/nsinit/init.go
+++ b/pkg/libcontainer/nsinit/init.go
@@ -126,9 +126,7 @@ func RestoreParentDeathSignal(old int) error {
 	// Signal self if parent is already dead. Does nothing if running in a new
 	// PID namespace, as Getppid will always return 0.
 	if syscall.Getppid() == 1 {
-		err := syscall.Kill(syscall.Getpid(), syscall.Signal(old))
-		syscall.Wait4(syscall.Getpid(), nil, 0, nil)
-		return err
+		return syscall.Kill(syscall.Getpid(), syscall.SIGKILL)
 	}
 
 	return nil