diff --git a/man7/unix.7 b/man7/unix.7
index 0e73b75dd..2eb56e199 100644
--- a/man7/unix.7
+++ b/man7/unix.7
@@ -298,6 +298,10 @@ since Linux 2.6.18;
 support for UNIX domain stream sockets was added
 .\" commit 37a9a8df8ce9de6ea73349c9ac8bdf6ba4ec4f70
 in Linux 4.2.
+.TP
+.BR SO_PEEK_OFF
+See
+.BR socket (7).
 .\"
 .SS Autobind feature
 If a