diff --git a/core/nginx/conf/nginx.conf b/core/nginx/conf/nginx.conf
index a3e32905..8b3d9be1 100644
--- a/core/nginx/conf/nginx.conf
+++ b/core/nginx/conf/nginx.conf
@@ -149,7 +149,7 @@ http {
     # Forwarding authentication server
     server {
       # Variables for proxifying
-      set $admin admin;
+      set $admin {{ HOST_ADMIN }};
 
       listen 127.0.0.1:8000;