1 files changed, 1 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index d3fd63479..e84b8b3c2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -6,6 +6,7 @@ gem "coderay", "~> 1.1.0"
 gem "fastercsv", "~> 1.5.0", :platforms => [:mri_18, :mingw_18, :jruby]
 gem "builder", "3.0.0"
 gem "mime-types"
+gem "awesome_nested_set", "2.1.6"
 
 # Optional gem for LDAP authentication
 group :ldap do