diff --git a/plugins/kernel_v2/config/disk.rb b/plugins/kernel_v2/config/disk.rb
index b84e71e3d..6f3b6c6ca 100644
--- a/plugins/kernel_v2/config/disk.rb
+++ b/plugins/kernel_v2/config/disk.rb
@@ -184,7 +184,7 @@ module VagrantPlugins
           end
         end
 
-        if @provider_config
+        if !@provider_config.empty?
           if !@provider_config.keys.include?(machine.provider_name)
             machine.env.ui.warn(I18n.t("vagrant.config.disk.missing_provider",
                                        machine: machine.name,
diff --git a/test/unit/plugins/kernel_v2/config/disk_test.rb b/test/unit/plugins/kernel_v2/config/disk_test.rb
index ebb0f4103..0d7a39959 100644
--- a/test/unit/plugins/kernel_v2/config/disk_test.rb
+++ b/test/unit/plugins/kernel_v2/config/disk_test.rb
@@ -9,8 +9,11 @@ describe VagrantPlugins::Kernel_V2::VagrantConfigDisk do
 
   subject { described_class.new(type) }
 
+  let(:ui) { double("ui") }
+  let(:env) { double("env", ui: ui) }
   let(:provider) { double("provider") }
-  let(:machine) { double("machine", provider: provider, provider_name: :virtualbox) }
+  let(:machine) { double("machine", name: "name", provider: provider, env: env,
+                         provider_name: :virtualbox) }
 
 
   def assert_invalid