diff --git a/CHANGELOG.md b/CHANGELOG.md
index d7e2c29..9c2dcfc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 0.2.7
+
+- Fix issue "NoMethodError: undefined method `<' for false:FalseClass" (#133) - thanks to @heaven
+
 ## 0.2.6
 
 - swagger_controller DSL can accept a resource_path which will be used over a generated path #126 @sb8244
diff --git a/lib/swagger/docs/generator.rb b/lib/swagger/docs/generator.rb
index f49e377..1cb5bda 100644
--- a/lib/swagger/docs/generator.rb
+++ b/lib/swagger/docs/generator.rb
@@ -136,7 +136,7 @@ def process_path(path, root, config, settings)
           klass = Config.log_exception { "#{path.to_s.camelize}Controller".constantize } rescue nil
           return {action: :skipped, path: path, reason: :klass_not_present} if !klass
           return {action: :skipped, path: path, reason: :not_swagger_resource} if !klass.methods.include?(:swagger_config) or !klass.swagger_config[:controller]
-          return {action: :skipped, path: path, reason: :not_kind_of_parent_controller} if config[:parent_controller] && !klass < config[:parent_controller]
+          return {action: :skipped, path: path, reason: :not_kind_of_parent_controller} if config[:parent_controller] && !(klass < config[:parent_controller])
           apis, models, defined_nicknames = [], {}, []
           routes.select{|i| i.defaults[:controller] == path}.each do |route|
             unless nickname_defined?(defined_nicknames, path, route) # only add once for each route once e.g. PATCH, PUT 
diff --git a/lib/swagger/docs/version.rb b/lib/swagger/docs/version.rb
index 5b6841a..6fe2644 100644
--- a/lib/swagger/docs/version.rb
+++ b/lib/swagger/docs/version.rb
@@ -1,5 +1,5 @@
 module Swagger
   module Docs
-    VERSION = "0.2.6"
+    VERSION = "0.2.7"
   end
 end
diff --git a/spec/lib/swagger/docs/generator_spec.rb b/spec/lib/swagger/docs/generator_spec.rb
index f9acaa6..aaf7ca9 100644
--- a/spec/lib/swagger/docs/generator_spec.rb
+++ b/spec/lib/swagger/docs/generator_spec.rb
@@ -5,6 +5,8 @@
   require "fixtures/controllers/application_controller"
   require "fixtures/controllers/ignored_controller"
 
+  class FooParentController; end
+
   before(:each) do
     FileUtils.rm_rf(tmp_dir)
     stub_const('ActionController::Base', ApplicationController)
@@ -34,7 +36,9 @@
 
   let(:default_config) { 
     {
-      :controller_base_path => "api/v1", :api_file_path => "#{tmp_dir}", :base_path => "http://api.no.where/",
+      :controller_base_path => "api/v1", 
+      :api_file_path => "#{tmp_dir}", 
+      :base_path => "http://api.no.where/",
       :attributes => {
         :info => {
           "title" => "Swagger Sample App",
@@ -134,6 +138,15 @@
         expect(file_resource).to_not exist
       end
     end
+    describe "#generate" do
+      it "respects parent_controller config option" do
+        new_config = default_config
+        new_config[:parent_controller] = ApplicationController
+        api_config = Swagger::Docs::Config.register_apis(DEFAULT_VER => new_config)
+        results = generate(api_config)
+        expect(results[DEFAULT_VER][:processed].count).to eq(controllers.count)
+      end
+    end
     describe "#write_docs" do
       context "no apis registered" do
         before(:each) do