diff --git a/support/nginx/peertube b/support/nginx/peertube
index fd3ff1534..f3b05ca73 100644
--- a/support/nginx/peertube
+++ b/support/nginx/peertube
@@ -79,8 +79,8 @@ server {
   }
 
   location ~ ^/api/v1/(videos|video-playlists|users/me/avatar/pick)$ {
-    client_max_body_size                      2M; # default is 1M
-    add_header            X-File-Maximum-Size 2M always; # inform backend of the set value in bytes
+    client_max_body_size                      2M 800k; # default is 1M
+    add_header            X-File-Maximum-Size 2M always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 = client_max_body_size)
 
     try_files /dev/null @api;
   }
@@ -92,8 +92,8 @@ server {
     # Note that temporary space is needed equal to the total size of all concurrent uploads.
     # This data gets stored in /var/lib/nginx by default, so you may want to put this directory
     # on a dedicated filesystem.
-    client_max_body_size                      8G; # default is 1M
-    add_header            X-File-Maximum-Size 8G always; # inform backend of the set value in bytes
+    client_max_body_size                      11G 200M; # default is 1M
+    add_header            X-File-Maximum-Size 8G always; # inform backend of the set value in bytes before mime-encoding (x * 1.4 = client_max_body_size)
 
     try_files /dev/null @api;
   }