diff --git a/man2/recv.2 b/man2/recv.2
index c1c7ff3ee..bf387d1fa 100644
--- a/man2/recv.2
+++ b/man2/recv.2
@@ -124,6 +124,17 @@ call is formed by
 .IR OR 'ing
 one or more of the following values:
 .TP
+.BR MSG_CMSG_CLOEXEC " (" recvmsg "() only; since Linux 2.6.23)"
+Set the close-on-exec flag for the file descriptor received
+via a Unix domain file descriptor using the
+.BR SCM_RIGHTS
+operation (described in
+.BR unix (7)).
+This flag is useful for the same reasons as the
+.B O_CLOEXEC
+flag of
+.BR open (2).
+.TP
 .B MSG_DONTWAIT
 Enables non-blocking operation; if the operation would block,
 .B EAGAIN