diff --git a/plugins/guests/windows/cap/public_key.rb b/plugins/guests/windows/cap/public_key.rb
index d62e385b6..4359625af 100644
--- a/plugins/guests/windows/cap/public_key.rb
+++ b/plugins/guests/windows/cap/public_key.rb
@@ -1,5 +1,7 @@
 require "tempfile"
 
+require_relative '../../../communicators/winssh/communicator'
+
 module VagrantPlugins
   module GuestWindows
     module Cap