diff --git a/Slim/Schema.pm b/Slim/Schema.pm
index 6c0d9d9..45c464f 100644
--- a/Slim/Schema.pm
+++ b/Slim/Schema.pm
@@ -2869,11 +2869,11 @@
 	# Bring back the TRACKARTIST role.
 	#
 	# If the user has not explictly set a compilation flag, _and_ the user
 	# has explict album artist(s) set, make the artist(s) tags become
 	# TRACKARTIST contributors for this track.
-	if (!defined $isCompilation) {
+	if (!$isCompilation) {
 
 		if ($attributes->{'ARTIST'} && $attributes->{'ALBUMARTIST'}) {
 
 			$attributes->{'TRACKARTIST'} = delete $attributes->{'ARTIST'};
 			# Bug: 6507 - use any ARTISTSORT tag for this contributor