diff --git a/nginx/letsencrypt-autogen.sh b/nginx/letsencrypt-autogen.sh
index f61f36d1..ab5bf550 100644
--- a/nginx/letsencrypt-autogen.sh
+++ b/nginx/letsencrypt-autogen.sh
@@ -29,7 +29,7 @@ if [ $? -eq 0]; then
 fi
 
 # Generate/update certificate
-certbot certonly --tls-sni-01-port $WO_PORT --work-dir ./letsencrypt --config-dir ./letsencrypt --logs-dir ./letsencrypt --standalone -d $DOMAIN --register-unsafely-without-email --agree-tos --keep
+certbot certonly --tls-sni-01-port 8000 --work-dir ./letsencrypt --config-dir ./letsencrypt --logs-dir ./letsencrypt --standalone -d $DOMAIN --register-unsafely-without-email --agree-tos --keep
 
 # Create ssl dir if necessary
 if [ ! -e ssl/ ]; then