diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/Vagrantfile b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/Vagrantfile
index 104f282f72..8a92fd6a5d 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/Vagrantfile
+++ b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/Vagrantfile
@@ -19,6 +19,7 @@ Vagrant.configure("2") do |config|
   config.vm.provider :virtualbox do |vb|
     # Guest Additions are unavailable.
     vb.check_guest_additions = false
+    vb.functional_vboxsf = false
 
     # Fix docker not being able to resolve private registry in VirtualBox
     vb.customize ["modifyvm", :id, "--natdnshostresolver1", "on"]