diff --git a/german-app-frontend/nginx.conf b/german-app-frontend/nginx.conf
index 9446ba8..0147f53 100644
--- a/german-app-frontend/nginx.conf
+++ b/german-app-frontend/nginx.conf
@@ -12,8 +12,18 @@ server {
     }
 
     # API proxy to backend (when running in Docker Compose)
+    # Note: backend expects /api/ prefix, so we proxy /api/ -> http://backend:8080/api/
     location /api/ {
-        proxy_pass http://backend:8080;
+        proxy_pass http://backend:8080/api/;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # Audio files proxy to backend (served from wwwroot/audio/)
+    location /audio/ {
+        proxy_pass http://backend:8080/audio/;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;