diff --git a/Slim/Schema.pm b/Slim/Schema.pm
index 45c464f..d01be1f 100644
--- a/Slim/Schema.pm
+++ b/Slim/Schema.pm
@@ -2660,11 +2660,11 @@
 	for my $tag (Slim::Schema::Contributor->contributorRoles, qw(
 		COMMENT GENRE ARTISTSORT PIC APIC ALBUM ALBUMSORT DISCC
 		COMPILATION REPLAYGAIN_ALBUM_PEAK REPLAYGAIN_ALBUM_GAIN 
 		MUSICBRAINZ_ARTIST_ID MUSICBRAINZ_ALBUMARTIST_ID MUSICBRAINZ_ALBUM_ID 
 		MUSICBRAINZ_ALBUM_TYPE MUSICBRAINZ_ALBUM_STATUS
-		ALBUMARTISTSORT
+		ALBUMARTISTSORT COMPOSERSORT CONDUCTORSORT
 	)) {
 
 		next unless defined $attributes->{$tag};
 
 		$deferredAttributes->{$tag} = delete $attributes->{$tag};
\ No newline at end of file