diff --git a/sys/amd64/linux/linux_machdep.c b/sys/amd64/linux/linux_machdep.c
index 451e4b4bf25b..376cce7932f5 100644
--- a/sys/amd64/linux/linux_machdep.c
+++ b/sys/amd64/linux/linux_machdep.c
@@ -383,7 +383,6 @@ linux_sigaltstack(struct thread *td, struct linux_sigaltstack_args *uap)
 	return (error);
 }
 
-/* XXX do all */
 int
 linux_arch_prctl(struct thread *td, struct linux_arch_prctl_args *args)
 {