diff --git a/gcube-token-docker/nginx.default.conf.j2 b/gcube-token-docker/nginx.default.conf.j2
index 64ac8ab..555defd 100644
--- a/gcube-token-docker/nginx.default.conf.j2
+++ b/gcube-token-docker/nginx.default.conf.j2
@@ -20,7 +20,7 @@ server {
   server_name {{ docker_service_host }};
   subrequest_output_buffer_size 200k;
 
-  client_max_body_size {{ docker_pep_max_body_size | default('100MB') }};
+  client_max_body_size {{ docker_pep_max_body_size | default('100M') }};
   client_body_timeout: {{ docker_pep_client_body_timeout | default('240s') }};
 
   proxy_http_version 1.1;