diff --git a/lib/rspec-puppet.rb b/lib/rspec-puppet.rb
index 5765d8a..6774813 100644
--- a/lib/rspec-puppet.rb
+++ b/lib/rspec-puppet.rb
@@ -4,7 +4,7 @@ require 'rspec-puppet/example'
 
 RSpec.configure do |c|
   c.add_setting :module_path, :default => '/etc/puppet/modules'
-  c.add_setting :manifest_dir, :default => '/etc/puppet/manifests'
-  c.add_setting :manifest, :default => '/etc/puppet/manifests/site.pp'
-  c.add_setting :template_dir, :default => '/etc/puppet/templates'
+  c.add_setting :manifest_dir, :default => nil
+  c.add_setting :manifest, :default => nil
+  c.add_setting :template_dir, :default => nil
 end