diff --git a/.rubocop.yml b/.rubocop.yml
index 7c480ec..77bcefe 100644
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -7,6 +7,11 @@ Style/TrailingCommaInArrayLiteral:
 Style/TrailingCommaInHashLiteral:
   EnforcedStyleForMultiline: consistent_comma
 
+Layout/AlignHash:
+  EnforcedHashRocketStyle: table
+  EnforcedColonStyle: table
+  EnforcedLastArgumentHashStyle: always_inspect # default
+
 Metrics/BlockLength:
   Exclude:
     - spec/**/*
diff --git a/Gemfile b/Gemfile
index d9e6b75..2eeae8e 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 source 'https://rubygems.org'
 
 # Specify your gem's dependencies in gpuzzletime.gemspec
diff --git a/Rakefile b/Rakefile
index b7e9ed5..82bb534 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,6 +1,8 @@
-require "bundler/gem_tasks"
-require "rspec/core/rake_task"
+# frozen_string_literal: true
+
+require 'bundler/gem_tasks'
+require 'rspec/core/rake_task'
 
 RSpec::Core::RakeTask.new(:spec)
 
-task :default => :spec
+task default: :spec
diff --git a/bin/console b/bin/console
index 2d0f01e..16bb807 100755
--- a/bin/console
+++ b/bin/console
@@ -1,7 +1,8 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
-require "bundler/setup"
-require "gpuzzletime"
+require 'bundler/setup'
+require 'gpuzzletime'
 
 # You can add fixtures and/or initialization code here to make experimenting
 # with your gem easier. You can also use a different console, if you like.
@@ -10,5 +11,5 @@ require "gpuzzletime"
 # require "pry"
 # Pry.start
 
-require "irb"
+require 'irb'
 IRB.start
diff --git a/lib/gpuzzletime/app.rb b/lib/gpuzzletime/app.rb
index 170c48e..b33178d 100644
--- a/lib/gpuzzletime/app.rb
+++ b/lib/gpuzzletime/app.rb
@@ -57,6 +57,7 @@ def fill_entries(purpose)
         # this is mixing preparation, assembly and output, but gets the job done
         next unless date                           # guard against the machine
         next unless @date == :all || @date == date # limit to one day if passed
+
         entries[date] = []
 
         start = nil             # at the start of the day, we have no previous end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 7e8b1da..2c2dd12 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-$LOAD_PATH.unshift File.expand_path('../../lib', __FILE__)
+$LOAD_PATH.unshift File.expand_path('../lib', __dir__)
 
 require 'gpuzzletime'
 require 'timecop'