diff --git a/app/helpers/boxes_helper.rb b/app/helpers/boxes_helper.rb
index 28ec885..8c5f149 100644
--- a/app/helpers/boxes_helper.rb
+++ b/app/helpers/boxes_helper.rb
@@ -69,6 +69,9 @@ module BoxesHelper
     if ( block.respond_to? 'help' )
       options[:help] = block.help
     end
+    unless block.visible?
+      options[:title] = _("This block is invisible. Your visitors will not see it.")
+    end
 
     box_decorator.block_target(block.box, block) +
     content_tag('div', result + footer_content + box_decorator.block_edit_buttons(block),
--
libgit2 0.21.2