diff --git a/man-pages-5.13-subid.patch b/man-pages-5.13-subid.patch
new file mode 100644
index 0000000..057a323
--- /dev/null
+++ b/man-pages-5.13-subid.patch
@@ -0,0 +1,43 @@
+From e2e1ac46cfc92f929f9d80e00678a6d44c9c40f9 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Nikola=20Forr=C3=B3?= <nforro@redhat.com>
+Date: Fri, 22 Jul 2022 14:47:43 +0200
+Subject: [PATCH] nsswitch.conf.5: Mention subid database
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+shadow-utils use nsswitch.conf for configuring delegation of subordinate
+uids/gids.
+
+Reference:
+https://github.com/shadow-maint/shadow/blob/3ec32f9975f262073f8fbdecd2bfaee4a1d3db48/lib/nss.c
+
+and subuid.5/subgid.5 man pages.
+
+Signed-off-by: Nikola Forró <nforro@redhat.com>
+---
+ man5/nsswitch.conf.5 | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+diff --git a/man5/nsswitch.conf.5 b/man5/nsswitch.conf.5
+index 2a93b7d..fcedc75 100644
+--- a/man5/nsswitch.conf.5
++++ b/man5/nsswitch.conf.5
+@@ -110,6 +110,14 @@ For example,
+ consults the
+ .B sudoers
+ database.
++Delegation of subordinate user/group IDs
++can be configured using the
++.B subid
++database. Refer to
++.BR subuid (5)
++and
++.BR subgid (5)
++for more details.
+ .PP
+ Here is an example
+ .I /etc/nsswitch.conf
+-- 
+2.35.3
+
diff --git a/man-pages.spec b/man-pages.spec
index 119d0d4..9f88681 100644
--- a/man-pages.spec
+++ b/man-pages.spec
@@ -4,7 +4,7 @@
 Summary: Linux kernel and C library user-space interface documentation
 Name: man-pages
 Version: 5.13
-Release: 4%{?dist}
+Release: 5%{?dist}
 License: GPL+ and GPLv2+ and BSD and MIT and Copyright only
 URL: http://www.kernel.org/doc/man-pages/
 Source: http://www.kernel.org/pub/linux/docs/man-pages/man-pages-%{version}.tar.xz
@@ -34,6 +34,9 @@ BuildArch: noarch
 # https://bugzilla.kernel.org/show_bug.cgi?id=53781
 Patch21: man-pages-3.42-close.patch
 
+# https://lore.kernel.org/linux-man/920642e4bc7b60c19962187b266dfc0ee4ac7f27.camel@redhat.com/
+Patch22: man-pages-5.13-subid.patch
+
 %description
 A large collection of manual pages from the Linux Documentation Project (LDP).
 
@@ -41,6 +44,7 @@ A large collection of manual pages from the Linux Documentation Project (LDP).
 %setup -q -a 1
 
 %patch21 -p1
+%patch22 -p1
 
 ## Remove man pages we are not going to use ##
 
@@ -96,6 +100,9 @@ fi
 %{_mandir}/man*/*
 
 %changelog
+* Tue Aug 23 2022 Nikola Forró <nforro@redhat.com> - 5.13-5
+- nsswitch.conf.5: Mention subid database
+
 * Tue Aug 09 2022 Nikola Forró <nforro@redhat.com> - 5.13-4
 - Remove POSIX man pages due to disallowed license
   resolves: #2116859