diff --git a/docs/guide/installation.md b/docs/guide/installation.md
index 6b95f93b..11ded8e8 100644
--- a/docs/guide/installation.md
+++ b/docs/guide/installation.md
@@ -155,6 +155,7 @@ kill_timeout = 30
   HOST="127.0.0.1"
   PORT=5000
   LNBITS_FORCE_HTTPS=true
+  FORWARDED_ALLOW_IPS="*"
   LNBITS_DATA_FOLDER="/data"
   
   ${PUT_YOUR_LNBITS_ENV_VARS_HERE}