diff --git a/imago-admin/nginx/default.conf b/imago-admin/nginx/default.conf
index 6b47e5f..642cc28 100644
--- a/imago-admin/nginx/default.conf
+++ b/imago-admin/nginx/default.conf
@@ -18,6 +18,15 @@ server {
         proxy_set_header X-Forwarded-Proto $scheme;
     }
 
+    # Proxy pour les fichiers signés (thumbnails, downloads)
+    location /files/ {
+        proxy_pass http://backend:8000;
+        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;
+    }
+
     location /admin/api/ {
         proxy_pass http://backend:8000;
         proxy_set_header Host $host;