diff --git a/man2/linkat.2 b/man2/linkat.2
index b5f8d2867..0d832e4b5 100644
--- a/man2/linkat.2
+++ b/man2/linkat.2
@@ -22,6 +22,7 @@
 .\" Formatted or processed versions of this manual, if unaccompanied by
 .\" the source, must acknowledge the copyright and authors of this work.
 .\"
+.\" FIXME: Linux 2.6.39 added AT_EMPTY_PATH
 .\"
 .TH LINKAT 2 2009-12-13 "Linux" "Linux Programmer's Manual"
 .SH NAME