diff --git a/Gemfile b/Gemfile
index fa75df1..b4e2a20 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,3 @@
-source 'https://rubygems.org'
+source "https://rubygems.org"
 
 gemspec
diff --git a/activerecord-analyze.gemspec b/activerecord-analyze.gemspec
index 5999961..1edd7f9 100644
--- a/activerecord-analyze.gemspec
+++ b/activerecord-analyze.gemspec
@@ -1,22 +1,23 @@
 # -*- encoding: utf-8 -*-
-lib = File.expand_path('../lib', __FILE__)
+lib = File.expand_path("../lib", __FILE__)
 $LOAD_PATH.unshift(lib) unless $LOAD_PATH.include?(lib)
-require 'activerecord-analyze/version'
+require "activerecord-analyze/version"
 
 Gem::Specification.new do |gem|
-  gem.name          = "activerecord-analyze"
-  gem.version       = ActiveRecordAnalyze::VERSION
-  gem.authors       = ["pawurb"]
-  gem.email         = ["p.urbanek89@gmail.com"]
-  gem.summary       = %q{ Add EXPLAIN ANALYZE to Active Record query objects }
-  gem.description   = %q{ Gem adds an "analyze" method to all Active Record query objects. Compatible with PostgreSQL database. }
-  gem.homepage      = "http://github.com/pawurb/activerecord-analyze"
-  gem.files         = `git ls-files`.split("\n")
-  gem.test_files    = gem.files.grep(%r{^(spec)/})
+  gem.name = "activerecord-analyze"
+  gem.version = ActiveRecordAnalyze::VERSION
+  gem.authors = ["pawurb"]
+  gem.email = ["p.urbanek89@gmail.com"]
+  gem.summary = %q{ Add EXPLAIN ANALYZE to Active Record query objects }
+  gem.description = %q{ Gem adds an "analyze" method to all Active Record query objects. Compatible with PostgreSQL database. }
+  gem.homepage = "http://github.com/pawurb/activerecord-analyze"
+  gem.files = `git ls-files`.split("\n")
+  gem.test_files = gem.files.grep(%r{^(spec)/})
   gem.require_paths = ["lib"]
-  gem.license       = "MIT"
+  gem.license = "MIT"
   gem.add_dependency "activerecord"
   gem.add_dependency "railties"
+  gem.add_dependency "rufo"
   gem.add_development_dependency "rake"
   gem.add_development_dependency "pg"
   gem.add_development_dependency "rspec"
diff --git a/lib/activerecord-analyze.rb b/lib/activerecord-analyze.rb
index 4c14d4c..26b93e9 100644
--- a/lib/activerecord-analyze.rb
+++ b/lib/activerecord-analyze.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'activerecord-analyze/main'
+require "activerecord-analyze/main"
 
 module ActiveRecordAnalyze
   def self.analyze_sql(raw_sql, opts = {})
@@ -11,7 +11,7 @@ def self.analyze_sql(raw_sql, opts = {})
         costs: true,
         buffers: true,
         timing: true,
-        summary: true
+        summary: true,
       }
     end
 
@@ -19,7 +19,6 @@ def self.analyze_sql(raw_sql, opts = {})
 
     result = ActiveRecord::Base.connection.execute("#{prefix} #{raw_sql}").to_a
 
-
     if [:json, :hash, :pretty_json].include?(opts[:format])
       raw_json = result[0].fetch("QUERY PLAN")
       if opts[:format] == :json
@@ -38,53 +37,53 @@ def self.analyze_sql(raw_sql, opts = {})
 
   def self.build_prefix(opts = {})
     format_sql = if fmt = opts[:format].presence
-      case fmt
-      when :json
-        "FORMAT JSON, "
-      when :hash
-        "FORMAT JSON, "
-      when :pretty_json
-        "FORMAT JSON, "
-      when :yaml
-        "FORMAT YAML, "
-      when :text
-        "FORMAT TEXT, "
-      when :xml
-        "FORMAT XML, "
-      else
-        ""
+        case fmt
+        when :json
+          "FORMAT JSON, "
+        when :hash
+          "FORMAT JSON, "
+        when :pretty_json
+          "FORMAT JSON, "
+        when :yaml
+          "FORMAT YAML, "
+        when :text
+          "FORMAT TEXT, "
+        when :xml
+          "FORMAT XML, "
+        else
+          ""
+        end
       end
-    end
 
     verbose_sql = if opts[:verbose] == true
-      ", VERBOSE"
-    end
+        ", VERBOSE"
+      end
 
     costs_sql = if opts[:costs] == true
-      ", COSTS"
-    end
+        ", COSTS"
+      end
 
     settings_sql = if opts[:settings] == true
-      ", SETTINGS"
-    end
+        ", SETTINGS"
+      end
 
     buffers_sql = if opts[:buffers] == true
-      ", BUFFERS"
-    end
+        ", BUFFERS"
+      end
 
     timing_sql = if opts[:timing] == true
-      ", TIMING"
-    end
+        ", TIMING"
+      end
 
     summary_sql = if opts[:summary] == true
-      ", SUMMARY"
-    end
+        ", SUMMARY"
+      end
 
     analyze_sql = if opts[:analyze] == false
-      ""
-    else
-      "ANALYZE"
-    end
+        ""
+      else
+        "ANALYZE"
+      end
 
     opts_sql = "(#{format_sql}#{analyze_sql}#{verbose_sql}#{costs_sql}#{settings_sql}#{buffers_sql}#{timing_sql}#{summary_sql})"
       .strip.gsub(/\s+/, " ")
diff --git a/lib/activerecord-analyze/main.rb b/lib/activerecord-analyze/main.rb
index f7f66e9..ca4c873 100644
--- a/lib/activerecord-analyze/main.rb
+++ b/lib/activerecord-analyze/main.rb
@@ -23,7 +23,7 @@ def analyze(opts = {})
           costs: true,
           buffers: true,
           timing: true,
-          summary: true
+          summary: true,
         }
       end
 
@@ -52,10 +52,10 @@ module Explain
     def exec_analyze(queries, opts = {}) # :nodoc:
       str = queries.map do |sql, binds|
         analyze_msg = if opts[:analyze] == false
-          ""
-        else
-          " ANALYZE"
-        end
+            ""
+          else
+            " ANALYZE"
+          end
 
         msg = "EXPLAIN#{analyze_msg} for: #{sql}".dup
         unless binds.empty?
@@ -75,4 +75,3 @@ def str.inspect
     end
   end
 end
-
diff --git a/spec/analyze_sql_spec.rb b/spec/analyze_sql_spec.rb
index b52e1f2..326779b 100644
--- a/spec/analyze_sql_spec.rb
+++ b/spec/analyze_sql_spec.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'spec_helper'
+require "spec_helper"
 
 describe "ActiveRecord analyze" do
   let(:raw_sql) do
@@ -31,8 +31,8 @@
     it "works" do
       puts result
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -43,8 +43,8 @@
 
     it "works" do
       expect(result[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -55,8 +55,8 @@
 
     it "works" do
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -70,14 +70,14 @@
         format: :hash,
         costs: true,
         timing: true,
-        summary: true
+        summary: true,
       }
     end
 
     it "works" do
       expect(result[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -88,15 +88,15 @@
 
     let(:opts) do
       {
-        full_debug: true
+        full_debug: true,
       }
     end
 
     it "works" do
       puts result
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 end
diff --git a/spec/main_spec.rb b/spec/main_spec.rb
index ffa8022..4548035 100644
--- a/spec/main_spec.rb
+++ b/spec/main_spec.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require 'spec_helper'
+require "spec_helper"
 require "migrations/create_users_migration.rb"
 
 class User < ActiveRecord::Base; end
@@ -27,8 +27,8 @@ class User < ActiveRecord::Base; end
     it "works" do
       result = User.all.analyze(format: :json)
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -36,8 +36,8 @@ class User < ActiveRecord::Base; end
     it "works" do
       result = User.all.analyze(format: :hash)
       expect(result[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -45,8 +45,8 @@ class User < ActiveRecord::Base; end
     it "works" do
       result = User.all.analyze(format: :pretty_json)
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -61,8 +61,8 @@ class User < ActiveRecord::Base; end
     it "works" do
       result = User.all.analyze(full_debug: true)
       expect(JSON.parse(result)[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 
@@ -72,11 +72,11 @@ class User < ActiveRecord::Base; end
         format: :hash,
         costs: true,
         timing: true,
-        summary: true
+        summary: true,
       )
       expect(result[0].keys.sort).to eq [
-        "Execution Time", "Plan", "Planning Time", "Triggers"
-      ]
+           "Execution Time", "Plan", "Planning Time", "Triggers",
+         ]
     end
   end
 end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 1675554..c8ff2e3 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,10 +1,10 @@
 # frozen_string_literal: true
 
-require 'rubygems'
+require "rubygems"
 require "active_record/railtie"
-require 'bundler/setup'
+require "bundler/setup"
 require "migrations/create_users_migration.rb"
-require_relative '../lib/activerecord-analyze'
+require_relative "../lib/activerecord-analyze"
 
 ENV["DATABASE_URL"] ||= "postgresql://postgres:secret@localhost:5432/activerecord-analyze-test"