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 db24837d3f..b43a347cd7 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
@@ -7,6 +7,7 @@ end
 
 require_relative 'change_host_name.rb'
 require_relative 'configure_networks.rb'
+require_relative 'base_mac.rb'
 
 Vagrant.configure("2") do |config|
   # SSH in as the default 'core' user, it has the vagrant ssh key.
diff --git a/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/base_mac.rb b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/base_mac.rb
new file mode 100644
index 0000000000..1f26796e07
--- /dev/null
+++ b/sdk_container/src/third_party/coreos-overlay/coreos-base/oem-vagrant/files/box/base_mac.rb
@@ -0,0 +1,4 @@
+# This file must be rewritten with a real value for VirtualBox
+Vagrant.configure("2") do |config|
+  config.vm.base_mac = "080027000000"
+end