diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 57f8a9e..0be61a9 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -6,8 +6,9 @@ RUN npm install
 
 COPY . .
 
-ARG VITE_API_URL=https://api.janichat.ru
-ARG VITE_WS_URL=wss://api.janichat.ru
+# Empty VITE_API_URL = use relative URLs (nginx proxies /api/ and /ws)
+ARG VITE_API_URL=
+ARG VITE_WS_URL=
 
 ENV VITE_API_URL=$VITE_API_URL
 ENV VITE_WS_URL=$VITE_WS_URL