diff --git a/docs/install/manual.md b/docs/install/manual.md
index 35ed5c81..f5cd7b0c 100644
--- a/docs/install/manual.md
+++ b/docs/install/manual.md
@@ -129,6 +129,7 @@ server {
     location / {
         proxy_set_header Host $http_host;
         proxy_pass http://unix:/var/www/recipes/recipes.sock;
+        proxy_set_header X-Forwarded-Proto $scheme;
     }
 }
 ```