diff --git a/Docker-compose-installation.md b/Docker-compose-installation.md
index e361e55..5a83bad 100644
--- a/Docker-compose-installation.md
+++ b/Docker-compose-installation.md
@@ -68,6 +68,9 @@ Target
 Protocol: HTTP
 Hostname: localhost
 Port: 8080 (unless a different port is specified in docker-compose.yml)
+
+Custom header tab:
+X-Forwarded-Proto             https
 ```
 Control panel >> Security >> Certificates
 Create a Let's Encrypt certificate for the chosen domain ```egw.example.org``` (LE requires 80 AND 443!)