diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index b51122aacc39..6407732c9548 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -429,6 +429,8 @@ kern_getfsstat(struct thread *td, struct statfs **buf, size_t bufsize,
 	case MNT_NOWAIT:
 		break;
 	default:
+		if (bufseg == UIO_SYSSPACE)
+			*buf = NULL;
 		return (EINVAL);
 	}
 restart: