diff --git a/build/addresses.pl b/build/addresses.pl
index f650c6e0..f2bfbbdc 100755
--- a/build/addresses.pl
+++ b/build/addresses.pl
@@ -61,7 +61,7 @@
 # mailing list.
 #
 $first = 1;
-foreach $addr (keys %have) {
+foreach $addr (sort keys %have) {
 	my $a = $have{$addr};
 	if (defined($wanted{$addr})) {
 		delete $wanted{$addr};