diff --git a/README.md b/README.md
index 8e4a83f..aaffeab 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ A [Docker](https://www.docker.com/what-docker) project to make a lightweight x86
 
 One crucial thing to know before starting is this container needs port 53 and port 80, two very popular ports that may conflict with existing applications.  If you have no other services or docker containers using port 53/80 (if you do, keep reading below for a reverse proxy example), the minimum arguments required to run this container are in the script [docker_run.sh](https://github.com/pi-hole/docker-pi-hole/blob/master/docker_run.sh) or summarized here:
 
-```
+```bash
 IP_LOOKUP="$(ip route get 8.8.8.8 | awk '{ print $NF; exit }')"  # May not work for VPN / tun0
 IPv6_LOOKUP="$(ip -6 route get 2001:4860:4860::8888 | awk '{for(i=1;i<=NF;i++) if ($i=="src") print $(i+1)}')"  # May not work for VPN / tun0
 IP="${IP:-$IP_LOOKUP}"  # use $IP, if set, otherwise IP_LOOKUP