diff --git a/plugins/commands/cap/plugin.rb b/plugins/commands/cap/plugin.rb
index dd8ffbb23..21199c9a9 100644
--- a/plugins/commands/cap/plugin.rb
+++ b/plugins/commands/cap/plugin.rb
@@ -9,7 +9,7 @@ module VagrantPlugins
       DESC
 
       command("cap", primary: false) do
-        require File.expand_path("../command", __FILE__)
+        require_relative "command"
         Command
       end
     end