diff --git a/Gemfile b/Gemfile
index d24cd36..b9ddab0 100644
--- a/Gemfile
+++ b/Gemfile
@@ -17,5 +17,5 @@ group :development do
   gem 'rspec', '~> 3.12'
   gem 'rspec-collection_matchers', '~> 1.2'
   gem 'rspec-its', '~> 1.3'
-  gem 'voxpupuli-rubocop', '~> 1.1'
+  gem 'voxpupuli-rubocop', '~> 2.0'
 end
diff --git a/lib/puppet-lint/plugins/check_parameter_documentation.rb b/lib/puppet-lint/plugins/check_parameter_documentation.rb
index 4d2f004..2411c94 100644
--- a/lib/puppet-lint/plugins/check_parameter_documentation.rb
+++ b/lib/puppet-lint/plugins/check_parameter_documentation.rb
@@ -83,7 +83,7 @@ def check
   private
 
   def type_str(idx)
-    idx[:type] == :CLASS ? 'class' : 'defined type'
+    (idx[:type] == :CLASS) ? 'class' : 'defined type'
   end
 
   def extract_params(idx)