diff --git a/man5/nsswitch.conf.5 b/man5/nsswitch.conf.5
index 33b1c64b8..c99073385 100644
--- a/man5/nsswitch.conf.5
+++ b/man5/nsswitch.conf.5
@@ -330,6 +330,52 @@ implements "nis" source.
 implements "nisplus" source.
 .PD
 .RE
+.LP
+The following files are read when "files" source is specified
+for respective databases:
+.RS 4
+.TP 12
+.PD 0
+.B aliases
+.I /etc/aliases
+.TP
+.B ethers
+.I /etc/ethers
+.TP
+.B group
+.I /etc/group
+.TP
+.B hosts
+.I /etc/hosts
+.TP
+.B initgroups
+.I /etc/group
+.TP
+.B netgroup
+.I /etc/netgroup
+.TP
+.B networks
+.I /etc/networks
+.TP
+.B passwd
+.I /etc/passwd
+.TP
+.B protocols
+.I /etc/protocols
+.TP
+.B publickey
+.I /etc/publickey
+.TP
+.B rpc
+.I /etc/rpc
+.TP
+.B services
+.I /etc/services
+.TP
+.B shadow
+.I /etc/shadow
+.PD
+.RE
 .SH NOTES
 Within each process that uses
 .BR nsswitch.conf ,