diff --git a/.gitignore b/.gitignore
index 3f0df8140..fe99020cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,6 +41,8 @@ public/robots.txt
 tags
 *.orig
 *.swp
+*.out
+*.db
 
 # Ignore application configuration
 /config/application.yml
diff --git a/Gemfile b/Gemfile
index 9658b645f..32dc347a4 100644
--- a/Gemfile
+++ b/Gemfile
@@ -63,6 +63,7 @@ group :development, :test do
   gem 'binding_of_caller'
   gem 'awesome_print'
   gem 'rubocop', require: false
+  gem 'starscope', require: false
 end
 
 group :production do