diff --git a/plugins/kernel_v2/config/vm.rb b/plugins/kernel_v2/config/vm.rb
index b2fe0550d..a2b9f35f8 100644
--- a/plugins/kernel_v2/config/vm.rb
+++ b/plugins/kernel_v2/config/vm.rb
@@ -433,9 +433,8 @@ module VagrantPlugins
         # Add provider config
         disk_config.add_provider_config(provider_options, &block)
 
-        if !Vagrant::Util::Experimental.feature_enabled?("disk_base_config") &&
-           !Vagrant::Util::Experimental.feature_enabled?("virtualbox_disk_hdd")
-          @logger.warn("Disk config defined, but experimental feature is not enabled. To use this feature, enable it with the experimental flag `disk_base_config`. Disk will not be added to internal config, and will be ignored.")
+        if !Vagrant::Util::Experimental.feature_enabled?("virtualbox_disk_hdd")
+          @logger.warn("Disk config defined, but experimental feature is not enabled. To use this feature, enable it with the experimental flag `virtualbox_disk_hdd`. Disk will not be added to internal config, and will be ignored.")
           return
         end
 
diff --git a/test/unit/plugins/kernel_v2/config/vm_test.rb b/test/unit/plugins/kernel_v2/config/vm_test.rb
index e86db848f..58b058295 100644
--- a/test/unit/plugins/kernel_v2/config/vm_test.rb
+++ b/test/unit/plugins/kernel_v2/config/vm_test.rb
@@ -552,7 +552,7 @@ describe VagrantPlugins::Kernel_V2::VMConfig do
   describe "#disk" do
     before(:each) do
       allow(Vagrant::Util::Experimental).to receive(:feature_enabled?).
-        with("disk_base_config").and_return("true")
+        with("virtualbox_disk_hdd").and_return("true")
     end
 
     it "stores the disks" do