diff --git a/Casks/virtualbox-beta.rb b/Casks/virtualbox-beta.rb
index e1aac3d74..c9265ffb1 100644
--- a/Casks/virtualbox-beta.rb
+++ b/Casks/virtualbox-beta.rb
@@ -30,4 +30,8 @@ cask 'virtualbox-beta' do
                '~/Library/VirtualBox',
              ],
       rmdir: '~/VirtualBox VMs'
+
+  caveats do
+    kext
+  end
 end