diff --git a/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl b/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
index 5c2c9c7d7..55dde3f4e 100644
--- a/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
+++ b/controllers/nginx/rootfs/etc/nginx/template/nginx.tmpl
@@ -327,6 +327,9 @@ http {
             proxy_set_header            Host {{ $location.ExternalAuth.Host }};
             proxy_ssl_server_name       on;
 
+            client_max_body_size        "{{ $location.Proxy.BodySize }}";
+
+
             set $target {{ $location.ExternalAuth.URL }};
             proxy_pass $target;
         }