diff --git a/man5/nsswitch.conf.5 b/man5/nsswitch.conf.5
index 1623b804b..24c40ac1a 100644
--- a/man5/nsswitch.conf.5
+++ b/man5/nsswitch.conf.5
@@ -21,7 +21,7 @@
 .\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 .\" MA 02111, USA.
 .\"
-.TH NSSWITCH.CONF 5 2012-04-14 "Linux" "Linux Programmer's Manual"
+.TH NSSWITCH.CONF 5 2013-02-12 "Linux" "Linux Programmer's Manual"
 .SH NAME
 nsswitch.conf \- Name Service Switch configuration file
 .SH DESCRIPTION
@@ -59,6 +59,11 @@ Host names and numbers, used by
 .BR gethostbyname (3)
 and related functions.
 .TP
+.B initgroups
+Supplementary group access list, used by
+.BR getgrouplist (3)
+function.
+.TP
 .B netgroup
 Network-wide list of hosts and users, used for access rules.
 C libraries before glibc 2.1 supported netgroups only over NIS.
@@ -240,6 +245,10 @@ value can be one of:
 .B return
 Return a result now.
 Do not call any further lookup functions.
+However, for compatibility reasons, if this is the selected action
+for the `group' database and the `notfound' status,
+and the configuration file does not contain the `initgroups' line,
+the next lookup function is always called, without affecting the search result.
 .TP
 .B continue
 Call the next lookup function.