diff --git a/frontend/nginx.conf b/frontend/nginx.conf
index 4237727..40c15ff 100644
--- a/frontend/nginx.conf
+++ b/frontend/nginx.conf
@@ -31,7 +31,7 @@ server {
 
     # WebSocket proxy
     location /ws {
-        proxy_pass http://backend:8000;
+        proxy_pass ws://backend:8000;
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection "upgrade";