diff --git a/usr.sbin/pw/pw.8 b/usr.sbin/pw/pw.8
index ae416e8ce5c7..82f010bee535 100644
--- a/usr.sbin/pw/pw.8
+++ b/usr.sbin/pw/pw.8
@@ -402,7 +402,7 @@ may be defined by either its name or group number.
 .It Fl G Ar grouplist
 Set additional group memberships for an account.
 .Ar grouplist
-is a comma-separated list of group names or group numbers.
+is a comma, space or tab-separated list of group names or group numbers.
 The user's name is added to the group lists in
 .Pa /etc/group ,
 and