--- trunk/Nos.pm	2005/08/02 19:41:28	70
+++ trunk/Nos.pm	2005/08/22 19:25:24	71
@@ -699,7 +699,7 @@
 
 =head2 _add_aliases
 
-Add or update alias in C</etc/aliases> (or equivavlent) file for selected list
+Add or update alias in C</etc/aliases> (or equivalent) file for selected list
 
  my $ok = $nos->add_aliases(
  	list => 'My list',
@@ -735,6 +735,8 @@
 		chmod 0777, $aliases || warn "can't change permission to 0777";
 	}
 
+	die "FATAL: aliases file $aliases is not writable\n" unless (-w $aliases);
+
 	my $a = new Mail::Alias($aliases) || croak "can't open aliases file $aliases: $!";
 
 	my $target = '';