diff --git a/.env.example b/.env.example
index 990108e02..496bb905b 100644
--- a/.env.example
+++ b/.env.example
@@ -136,6 +136,8 @@ KEYCLOAK_DISCOVERY_URL=""
 ######################################
 
 # uvicorn variable, uncomment to allow https behind a proxy
+# IMPORTANT: this also needs the webserver to be configured to forward the headers
+# http://docs.lnbits.org/guide/installation.html#running-behind-an-apache2-reverse-proxy-over-https
 # FORWARDED_ALLOW_IPS="*"
 
 # Server security, rate limiting ips, blocked ips, allowed ips