diff --git a/lib/vagrant-cachier/plugin.rb b/lib/vagrant-cachier/plugin.rb
index bb337b1..01b7644 100644
--- a/lib/vagrant-cachier/plugin.rb
+++ b/lib/vagrant-cachier/plugin.rb
@@ -17,7 +17,7 @@ module VagrantPlugins
 
     # Keep an eye on https://github.com/mitchellh/vagrant/wiki/Available-Vagrant-Plugins#wiki-providers
     # for more.
-    CLOUD_PROVIDERS = %w( aws cloudstack digitalocean hp joyent openstack rackspace
+    CLOUD_PROVIDERS = %w( aws cloudstack digitalocean digital_ocean hp joyent openstack rackspace
                           softlayer proxmox managed azure brightbox cloudstack vcloud
                           vsphere )
   end