diff --git a/man2/shmctl.2 b/man2/shmctl.2
index d4579ef17..d9ba30f2a 100644
--- a/man2/shmctl.2
+++ b/man2/shmctl.2
@@ -28,10 +28,12 @@
 .\" Modified 2002-01-05, 2004-05-27, 2004-06-17,
 .\"    Michael Kerrisk <mtk-manpages@gmx.net>
 .\" Modified 2004-10-11, aeb
-.\" Modified, 11 Nov 2004, Michael Kerrisk <mtk-manpages@gmx.net>
+.\" Modified, Nov 2004, Michael Kerrisk <mtk-manpages@gmx.net>
 .\"	Language and formatting clean-ups
 .\"	Updated shmid_ds structure definitions
 .\"	Added information on SHM_DEST and SHM_LOCKED flags
+.\"	Noted that CAP_IPC_LOCK is not required for SHM_UNLOCK 
+.\"		since kernel 2.6.9
 .\"
 .TH SHMCTL 2 2004-11-10 "Linux 2.6.9" "Linux Programmer's Manual"
 .SH NAME
@@ -223,6 +225,7 @@ capability).
 Or,
 .B SHM_LOCK
 or
+(in Linux kernels before 2.6.9)
 .B SHM_UNLOCK
 was specified, but the process was not privileged
 (Linux: did not have the