diff --git a/app/views/attachments/_form.html.haml b/app/views/attachments/_form.html.haml
index 5353e04..d65d8e1 100644
--- a/app/views/attachments/_form.html.haml
+++ b/app/views/attachments/_form.html.haml
@@ -3,6 +3,7 @@
 %dl
   %dt
     %label{:for => 'attachment_file'} Arquivo
+    %p.grey= "Tamanho máximo: #{number_to_human_size(App.max_upload_file_size)}"
   %dd= file_field 'attachment', 'file'
 
   %dt