diff --git a/entrypoint.sh b/entrypoint.sh
index 3406112..af44aca 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,5 +1,9 @@
 #!/bin/bash
-nginx
+
+if [[ "${TARGET_PORT}" != "" ]]; then
+  sed -i -e "s,8123,${TARGET_PORT},g" /etc/nginx/sites-enabled/default
+fi
+/usr/sbin/nginx
 
 mkdir -p /var/lib/shellinabox
 chmod a+rwX /var/lib/shellinabox
@@ -19,4 +23,4 @@ else
   { while true; do npm start ; sleep 3 ; done ; } &
   cd /website/client
   npm start
-fi
\ No newline at end of file
+fi