diff --git a/man5/nsswitch.conf.5 b/man5/nsswitch.conf.5
index f0c9de863..33b1c64b8 100644
--- a/man5/nsswitch.conf.5
+++ b/man5/nsswitch.conf.5
@@ -289,7 +289,7 @@ Include every user, except previously excluded ones, from the
 NIS passwd map.
 .RE
 .LP
-By default the source is "nis", but this may be
+By default, the source is "nis", but this may be
 overridden by specifying "nisplus" as the source for the pseudo-databases
 .BR passwd_compat ,
 .BR group_compat ,