diff --git a/config/environment.rb b/config/environment.rb
index 58db396..f419458 100644
--- a/config/environment.rb
+++ b/config/environment.rb
@@ -52,3 +52,5 @@ end
 
 # Include your application configuration below
 require 'gettext/rails'
+
+Tag.hierarchical = true
--
libgit2 0.21.2