diff --git a/lib/hobo/env.rb b/lib/hobo/env.rb
index 94d156fda..c55f259e7 100644
--- a/lib/hobo/env.rb
+++ b/lib/hobo/env.rb
@@ -1,3 +1,5 @@
+require 'yaml'
+
 module Hobo
   class Env
     HOME =  File.expand_path('~/.hobo')