diff --git a/man2/pidfd_open.2 b/man2/pidfd_open.2
index 225a7479a..70a357eca 100644
--- a/man2/pidfd_open.2
+++ b/man2/pidfd_open.2
@@ -173,6 +173,11 @@ on the file descriptor fails with the error
 If the PID file descriptor refers to a child of the calling process,
 then it can be waited on using
 .BR waitid (2).
+.IP *
+The
+.BR pidfd_getfd (2)
+system call can be used to obtain a duplicate of a file descriptor
+of another process referred to by a PID file descriptor.
 .PP
 The
 .BR pidfd_open ()
@@ -253,6 +258,7 @@ main(int argc, char *argv[])
 .SH SEE ALSO
 .BR clone (2),
 .BR kill (2),
+.BR pidfd_getfd (2),
 .BR pidfd_send_signal (2),
 .BR poll (2),
 .BR select (2),