diff --git a/.env-sample b/.env-sample
index b4d1335..325ee06 100644
--- a/.env-sample
+++ b/.env-sample
@@ -30,6 +30,8 @@ MAS_CLIENT_ID="0000000000000000000SYNAPSE"
 MAS_EMAIL_FROM='"Matrix Authentication Service" <support@${DOMAIN}>'
 MAS_EMAIL_REPLY_TO='"Matrix Authentication Service" <support@${DOMAIN}>'
 
+# This should be the public IP of your $LIVEKIT_FQDN.
+# If livekit doesn't work, double-check this.
 LIVEKIT_NODE_IP=127.0.0.1
 
 COUNTRY=GB
diff --git a/setup.sh b/setup.sh
index 5b26e20..176b35a 100755
--- a/setup.sh
+++ b/setup.sh
@@ -21,9 +21,12 @@ if [[ ! -e .env  ]]; then
     sed -ir s/^USER_ID=/USER_ID=$(id -u)/ .env
     sed -ir s/^GROUP_ID=/GROUP_ID=$(id -g)/ .env
 
-    NODE_IP=`getent hosts livekit.$DOMAIN | cut -d' ' -f1`
-    if ! [ -z "$NODE_IP" ]; then
-	    sed -ir s/LIVEKIT_NODE_IP=127.0.0.1/LIVEKIT_NODE_IP=$NODE_IP/ .env
+    # try to guess your livekit IP
+    if [ -x "$(command -v getent)" ]; then
+        NODE_IP=`getent hosts livekit.$DOMAIN | cut -d' ' -f1`
+        if ! [ -z "$NODE_IP" ]; then
+            sed -ir s/LIVEKIT_NODE_IP=127.0.0.1/LIVEKIT_NODE_IP=$NODE_IP/ .env
+        fi
     fi
 
     read -p "Enter base domain name (e.g. example.com): " DOMAIN