diff --git a/nodemgmt-scripts.sh b/nodemgmt-scripts.sh
index 93591725..38da6fc2 100755
--- a/nodemgmt-scripts.sh
+++ b/nodemgmt-scripts.sh
@@ -89,7 +89,7 @@ LISTCERTS(){
 		SUBJECT=$(openssl x509 -in ${certdir}/cert.pem -noout -subject|grep -oP '(?<=CN = )[^,]+'|sort -uV)
 		SUBJECTNAMES=$(openssl x509 -in ${certdir}/cert.pem -noout -text|grep -oP '(?<=DNS:|IP Address:)[^,]+'|sort -uV)
 		SUBJECTNAMES=${SUBJECTNAMES//$'\n'/,}
-		SUBJECTNAMES=$(echo $SUBJECTNAMES | sed 's/${SUBJECT}//g')
+		SUBJECTNAMES=$(echo $SUBJECTNAMES | sed 's/$SUBJECT/,/g')
 		IFS=','; SUBJECT_NAMES=(${SUBJECTNAMES}); unset IFS
 		CERTEXPIRE=$(date -d "$(: | openssl x509 -in ${certdir}/cert.pem -text | grep 'Not After' |awk '{print $4,$5,$7}')" '+%s'); 
 		DAYS=14; DUEIN=$(($(date +%s) + (86400*$DAYS)));