diff --git a/.env.example b/.env.example
index d8fed15..6fb20c9 100644
--- a/.env.example
+++ b/.env.example
@@ -2,7 +2,7 @@ DOMAIN=localhost
 DEMO=true
 # note that with DEBUG=true, logs are more verbose (include tracebacks)
 DEBUG=true
-ALLOWED_HOSTS=localhost,localhost:8000,127.0.0.1,
+ALLOWED_HOSTS=${DOMAIN},${DOMAIN}:8000,127.0.0.1,127.0.0.1:8000
 DPP=false
 
 STATIC_ROOT=/tmp/static/