diff --git a/etc/nextcloudpi-config.d/letsencrypt.sh b/etc/nextcloudpi-config.d/letsencrypt.sh
index d9bc85196..093022306 100644
--- a/etc/nextcloudpi-config.d/letsencrypt.sh
+++ b/etc/nextcloudpi-config.d/letsencrypt.sh
@@ -57,15 +57,17 @@ configure()
 {
   ping  -W 2 -w 1 -q github.com &>/dev/null || { echo "No internet connectivity"; return 1; }
 
+  local DOMAIN_LOWERCASE="${DOMAIN_,,}"
+
   grep -q ServerName $VHOSTCFG && \
     sed -i "s|ServerName .*|ServerName $DOMAIN_|" $VHOSTCFG || \
     sed -i "/DocumentRoot/aServerName $DOMAIN_" $VHOSTCFG 
 
-  sed -i "s|SSLCertificateFile.*|SSLCertificateFile /etc/letsencrypt/live/$DOMAIN_/fullchain.pem|" $VHOSTCFG
-  sed -i "s|SSLCertificateKeyFile.*|SSLCertificateKeyFile /etc/letsencrypt/live/$DOMAIN_/privkey.pem|" $VHOSTCFG
+  sed -i "s|SSLCertificateFile.*|SSLCertificateFile /etc/letsencrypt/live/$DOMAIN_LOWERCASE/fullchain.pem|" $VHOSTCFG
+  sed -i "s|SSLCertificateKeyFile.*|SSLCertificateKeyFile /etc/letsencrypt/live/$DOMAIN_LOWERCASE/privkey.pem|" $VHOSTCFG
 
-  sed -i "s|SSLCertificateFile.*|SSLCertificateFile /etc/letsencrypt/live/$DOMAIN_/fullchain.pem|" $VHOSTCFG2
-  sed -i "s|SSLCertificateKeyFile.*|SSLCertificateKeyFile /etc/letsencrypt/live/$DOMAIN_/privkey.pem|" $VHOSTCFG2
+  sed -i "s|SSLCertificateFile.*|SSLCertificateFile /etc/letsencrypt/live/$DOMAIN_LOWERCASE/fullchain.pem|" $VHOSTCFG2
+  sed -i "s|SSLCertificateKeyFile.*|SSLCertificateKeyFile /etc/letsencrypt/live/$DOMAIN_LOWERCASE/privkey.pem|" $VHOSTCFG2
 
   /etc/letsencrypt/letsencrypt-auto certonly -n --no-self-upgrade --webroot -w $NCDIR --hsts --agree-tos -m $EMAIL_ -d $DOMAIN_ && {
     echo "* 1 * * 1 root /etc/letsencrypt/certbot-auto renew --quiet" > /etc/cron.d/letsencrypt-ncp