diff --git a/lib/jekyll/converters/markdown.rb b/lib/jekyll/converters/markdown.rb
index e6efabf5..bb7b7ffa 100644
--- a/lib/jekyll/converters/markdown.rb
+++ b/lib/jekyll/converters/markdown.rb
@@ -19,9 +19,9 @@ module Jekyll
 
       def get_processor
         case @config["markdown"].downcase
-          when "redcarpet" then return RedcarpetParser.new(@config)
-          when "kramdown"  then return KramdownParser.new(@config)
-          when "rdiscount" then return RDiscountParser.new(@config)
+        when "redcarpet" then return RedcarpetParser.new(@config)
+        when "kramdown"  then return KramdownParser.new(@config)
+        when "rdiscount" then return RDiscountParser.new(@config)
         else
           get_custom_processor
         end
diff --git a/lib/jekyll/frontmatter_defaults.rb b/lib/jekyll/frontmatter_defaults.rb
index edf70969..877f517e 100644
--- a/lib/jekyll/frontmatter_defaults.rb
+++ b/lib/jekyll/frontmatter_defaults.rb
@@ -13,19 +13,20 @@ module Jekyll
     def update_deprecated_types(set)
       return set unless set.key?('scope') && set['scope'].key?('type')
 
-      set['scope']['type'] = case set['scope']['type']
-      when 'page'
-        Deprecator.defaults_deprecate_type('page', 'pages')
-        'pages'
-      when 'post'
-        Deprecator.defaults_deprecate_type('post', 'posts')
-        'posts'
-      when 'draft'
-        Deprecator.defaults_deprecate_type('draft', 'drafts')
-        'drafts'
-      else
-        set['scope']['type']
-      end
+      set['scope']['type'] =
+        case set['scope']['type']
+        when 'page'
+          Deprecator.defaults_deprecate_type('page', 'pages')
+          'pages'
+        when 'post'
+          Deprecator.defaults_deprecate_type('post', 'posts')
+          'posts'
+        when 'draft'
+          Deprecator.defaults_deprecate_type('draft', 'drafts')
+          'drafts'
+        else
+          set['scope']['type']
+        end
 
       set
     end
diff --git a/lib/jekyll/readers/data_reader.rb b/lib/jekyll/readers/data_reader.rb
index cbb24be3..870fc2dc 100644
--- a/lib/jekyll/readers/data_reader.rb
+++ b/lib/jekyll/readers/data_reader.rb
@@ -50,13 +50,13 @@ module Jekyll
     # Returns the contents of the data file.
     def read_data_file(path)
       case File.extname(path).downcase
-        when '.csv'
-          CSV.read(path, {
-                           :headers => true,
-                           :encoding => site.config['encoding']
-                       }).map(&:to_hash)
-        else
-          SafeYAML.load_file(path)
+      when '.csv'
+        CSV.read(path, {
+                         :headers => true,
+                         :encoding => site.config['encoding']
+                     }).map(&:to_hash)
+      else
+        SafeYAML.load_file(path)
       end
     end
 
diff --git a/lib/jekyll/utils.rb b/lib/jekyll/utils.rb
index 0760d9e3..1d81e0f0 100644
--- a/lib/jekyll/utils.rb
+++ b/lib/jekyll/utils.rb
@@ -164,16 +164,17 @@ module Jekyll
       end
 
       # Replace each character sequence with a hyphen
-      re = case mode
-      when 'raw'
-        SLUGIFY_RAW_REGEXP
-      when 'default'
-        SLUGIFY_DEFAULT_REGEXP
-      when 'pretty'
-        # "._~!$&'()+,;=@" is human readable (not URI-escaped) in URL
-        # and is allowed in both extN and NTFS.
-        SLUGIFY_PRETTY_REGEXP
-      end
+      re =
+        case mode
+        when 'raw'
+          SLUGIFY_RAW_REGEXP
+        when 'default'
+          SLUGIFY_DEFAULT_REGEXP
+        when 'pretty'
+          # "._~!$&'()+,;=@" is human readable (not URI-escaped) in URL
+          # and is allowed in both extN and NTFS.
+          SLUGIFY_PRETTY_REGEXP
+        end
 
       # Strip according to the mode
       slug = string.gsub(re, '-')