diff --git a/immich-server.subdomain.conf.sample b/immich-server.subdomain.conf.sample
index b4099a7..8979d73 100644
--- a/immich-server.subdomain.conf.sample
+++ b/immich-server.subdomain.conf.sample
@@ -39,7 +39,7 @@ server {
 
         include /config/nginx/proxy.conf;
         include /config/nginx/resolver.conf;
-        set $upstream_app immich-server;
+        set $upstream_app immich_server;
         set $upstream_port 2283;
         set $upstream_proto http;
         proxy_pass $upstream_proto://$upstream_app:$upstream_port;
@@ -49,7 +49,7 @@ server {
     location ~ (/immich)?/api {
         include /config/nginx/proxy.conf;
         include /config/nginx/resolver.conf;
-        set $upstream_app immich-server;
+        set $upstream_app immich_server;
         set $upstream_port 2283;
         set $upstream_proto http;
         proxy_pass $upstream_proto://$upstream_app:$upstream_port;