diff --git a/woof-code/rootfs-packages/pmusic/usr/local/pmusic/func_trackinfo b/woof-code/rootfs-packages/pmusic/usr/local/pmusic/func_trackinfo
index 62b8e5ee321..17ef450ea78 100755
--- a/woof-code/rootfs-packages/pmusic/usr/local/pmusic/func_trackinfo
+++ b/woof-code/rootfs-packages/pmusic/usr/local/pmusic/func_trackinfo
@@ -159,7 +159,7 @@ artist(){
 		done
 		XML_CONV="$XML"
 		#---
-		grep -F '<release-group id' <<< $XML_CONV | awk -F'id="' '{print $2}' | cut -d'"' -f1 | tac > ${MYDIR}_discography_tmp #reverse order to prefer oldest release
+		grep -F '<release-group id' <<< "$XML_CONV" | awk -F'id="' '{print $2}' | cut -d'"' -f1 | tac > ${MYDIR}_discography_tmp #reverse order to prefer oldest release
 		while read I; do
 			TMP="`grep -FA3 "$I" <<< "$XML_CONV" | grep -F '</title'`" #title
 			TMP1="`grep -FA5 "$I" <<< "$XML_CONV" | grep -Fm1 '</first-release-date'`" #year of release