diff --git a/refactor_music_library.sh b/refactor_music_library.sh
index 328eabf..742113b 100755
--- a/refactor_music_library.sh
+++ b/refactor_music_library.sh
@@ -127,7 +127,7 @@ function migrate_music {
 	[[ ${#track} == 1 ]] && track="0$track"
 	echo "*** Track=$track"
 
-	if [[ -s "$track" ]]; then
+	if [[ -n "$track" ]]; then
 		new_file="$track. $new_file"
 	fi