diff --git a/support/nginx/peertube b/support/nginx/peertube
index 2b1600d97..3d7dc05bc 100644
--- a/support/nginx/peertube
+++ b/support/nginx/peertube
@@ -75,6 +75,7 @@ server {
   }
 
   location / {
+    add_header Vary Accept-Language;
     try_files /dev/null @api;
   }