diff --git a/ai-service-admin/nginx.conf b/ai-service-admin/nginx.conf
index 90a7824..03e0b59 100644
--- a/ai-service-admin/nginx.conf
+++ b/ai-service-admin/nginx.conf
@@ -9,7 +9,8 @@ server {
     }
 
     location /api/ {
-        proxy_pass http://ai-service:8080/;
+        set $upstream http://ai-service:8080;
+        proxy_pass $upstream/;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection 'upgrade';