diff --git a/homeassistant.subdomain.conf.sample b/homeassistantcore.subdomain.conf.sample
similarity index 93%
rename from homeassistant.subdomain.conf.sample
rename to homeassistantcore.subdomain.conf.sample
index 07d8fd1..7566944 100644
--- a/homeassistant.subdomain.conf.sample
+++ b/homeassistantcore.subdomain.conf.sample
@@ -24,7 +24,7 @@ server {
 
         include /config/nginx/proxy.conf;
         resolver 127.0.0.11 valid=30s;
-        set $upstream_app homeassistant;
+        set $upstream_app HomeAssistantCore;
         set $upstream_port 8123;
         set $upstream_proto http;
         proxy_pass $upstream_proto://$upstream_app:$upstream_port;
@@ -33,7 +33,7 @@ server {
 
     location /api/websocket {
         resolver 127.0.0.11 valid=30s;
-        set $upstream_app homeassistant;
+        set $upstream_app HomeAssistantCore;
         set $upstream_port 8123;
         set $upstream_proto http;
         proxy_pass $upstream_proto://$upstream_app:$upstream_port;