diff --git a/test/unit/plugins/providers/virtualbox/action/clean_machine_folder_test.rb b/test/unit/plugins/providers/virtualbox/action/clean_machine_folder_test.rb
index 2234b4433..896c4842f 100644
--- a/test/unit/plugins/providers/virtualbox/action/clean_machine_folder_test.rb
+++ b/test/unit/plugins/providers/virtualbox/action/clean_machine_folder_test.rb
@@ -3,7 +3,7 @@ require_relative '../base'
 describe VagrantPlugins::ProviderVirtualBox::Action::CleanMachineFolder do
   let(:app) { double("app") }
   let(:driver) { double("driver") }
-  let(:machine) { double("machine", provider: double("provider", driver: driver)) }
+  let(:machine) { double("machine", provider: double("provider", driver: driver), name: "") }
   let(:env) {
     { machine: machine }
   }