diff --git a/docker/nginx.dev.conf b/docker/nginx.dev.conf
index f76d239135c..f919ab7e74b 100644
--- a/docker/nginx.dev.conf
+++ b/docker/nginx.dev.conf
@@ -47,6 +47,9 @@ server {
 
         # Media files require user authentication
         auth_request /auth;
+
+        # Content header to force download
+        add_header Content-disposition "attachment";
     }
 
     # Use the 'user' API endpoint for auth
diff --git a/docker/production/nginx.prod.conf b/docker/production/nginx.prod.conf
index 741cc7541a7..8725a1453c8 100644
--- a/docker/production/nginx.prod.conf
+++ b/docker/production/nginx.prod.conf
@@ -46,6 +46,9 @@ server {
 
         # Media files require user authentication
         auth_request /auth;
+
+        # Content header to force download
+        add_header Content-disposition "attachment";
     }
 
     # Use the 'user' API endpoint for auth