diff --git a/lib/vagrant-cachier/plugin.rb b/lib/vagrant-cachier/plugin.rb
index e9523dc..11460bf 100644
--- a/lib/vagrant-cachier/plugin.rb
+++ b/lib/vagrant-cachier/plugin.rb
@@ -20,7 +20,7 @@ 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
-                          softlayer proxmox managed virtualbox )
+                          softlayer proxmox managed )
   end
 end