diff --git a/config/default.rb b/config/default.rb
index de8336d65..97c051cc0 100644
--- a/config/default.rb
+++ b/config/default.rb
@@ -10,7 +10,7 @@ Vagrant::Config.run do |config|
   config.ssh.forwarded_port_key = "ssh"
   config.ssh.max_tries = 10
   config.ssh.timeout = 30
-  config.ssh.private_key_path = File.join(File.dirname(__FILE__), '..', 'keys', 'vagrant')
+  config.ssh.private_key_path = File.join(PROJECT_ROOT, 'keys', 'vagrant')
 
   config.vm.box_ovf = "box.ovf"
   config.vm.base_mac = "0800279C2E42"