diff --git a/authorities/detail.pl b/authorities/detail.pl
index 425b15551c..5a2456b6ad 100755
--- a/authorities/detail.pl
+++ b/authorities/detail.pl
@@ -476,7 +476,7 @@ my $tag;
 
 my $authtypes = getauthtypes;
 my @authtypesloop;
-foreach my $thisauthtype (keys %$authtypes) {
+foreach my $thisauthtype (sort { $authtypes->{$b} cmp $authtypes->{$a} } keys %$authtypes) {
 	my $selected = 1 if $thisauthtype eq $authtypecode;
 	my %row =(value => $thisauthtype,
 				selected => $selected,