diff --git a/lib/vagrant/active_list.rb b/lib/vagrant/active_list.rb
index 6efcc6521..334ef7c8a 100644
--- a/lib/vagrant/active_list.rb
+++ b/lib/vagrant/active_list.rb
@@ -50,7 +50,7 @@ module Vagrant
     def add(vm)
       list[vm.uuid] = {
         :path => env.root_path,
-        :last_updated => Time.now.to_i
+        :created_at => Time.now.to_i
       }
 
       save