diff --git a/lib/paneron/register/register.rb b/lib/paneron/register/register.rb
index 5863227..da9e273 100644
--- a/lib/paneron/register/register.rb
+++ b/lib/paneron/register/register.rb
@@ -4,7 +4,7 @@ module Paneron
   module Register
     class Register
       attr_reader :register_path, :register_root_path, :register_yaml_path,
-        :register_name
+                  :register_name
 
       def initialize(register_root_path, register_name)
         register_path = File.join(register_root_path, register_name)
@@ -13,7 +13,7 @@ def initialize(register_root_path, register_name)
         @register_root_path = register_root_path
         @register_path = register_path
         @register_yaml_path = File.join(register_path,
-          REGISTER_METADATA_FILENAME)
+                                        REGISTER_METADATA_FILENAME)
         @item_classes = {}
         @item_class_names = nil
         @item_uuids = nil
@@ -24,17 +24,17 @@ def initialize(register_root_path, register_name)
       def self.validate_register_path(register_path)
         unless File.exist?(register_path)
           raise Paneron::Register::Error,
-            "Register path does not exist"
+                "Register path does not exist"
         end
         unless File.directory?(register_path)
           raise Paneron::Register::Error,
-            "Register path is not a directory"
+                "Register path is not a directory"
         end
         unless File.exist?(File.join(
-          register_path, REGISTER_METADATA_FILENAME
-        ))
+                             register_path, REGISTER_METADATA_FILENAME
+                           ))
           raise Paneron::Register::Error,
-            "Register metadata file does not exist"
+                "Register metadata file does not exist"
         end
       end
 
@@ -46,16 +46,16 @@ def item_classes(item_class_name = nil)
           end
         else
           @item_classes[item_class_name] ||=
-          Paneron::Register::ItemClass.new(
-            register_root_path, register_name, item_class_name
-          )
+            Paneron::Register::ItemClass.new(
+              register_root_path, register_name, item_class_name
+            )
         end
       end
 
       def item_class_names
         @item_class_names ||=
-        Dir.glob(File.join(register_path, "*/*.yaml"))
-          .map { |file| File.basename(File.dirname(file)) }.uniq
+          Dir.glob(File.join(register_path, "*/*.yaml"))
+            .map { |file| File.basename(File.dirname(file)) }.uniq
       end
 
       def item_uuids
diff --git a/lib/paneron/register/register_root.rb b/lib/paneron/register/register_root.rb
index 397eb17..110cddd 100644
--- a/lib/paneron/register/register_root.rb
+++ b/lib/paneron/register/register_root.rb
@@ -9,7 +9,7 @@ def initialize(register_root_path)
         self.class.validate_root_path(register_root_path)
         @register_root_path = register_root_path
         @register_root_yaml_path = File.join(register_root_path,
-          REGISTER_ROOT_METADATA_FILENAME)
+                                             REGISTER_ROOT_METADATA_FILENAME)
         @register_names = nil
         @registries = {}
       end
@@ -19,17 +19,17 @@ def initialize(register_root_path)
       def self.validate_root_path(register_root_path)
         unless File.exist?(register_root_path)
           raise Paneron::Register::Error,
-            "Register root path does not exist"
+                "Register root path does not exist"
         end
         unless File.directory?(register_root_path)
           raise Paneron::Register::Error,
-            "Register root path is not a directory"
+                "Register root path is not a directory"
         end
         unless File.exist?(File.join(
-          register_root_path, REGISTER_ROOT_METADATA_FILENAME
-        ))
+                             register_root_path, REGISTER_ROOT_METADATA_FILENAME
+                           ))
           raise Paneron::Register::Error,
-            "Register root metadata file does not exist"
+                "Register root metadata file does not exist"
         end
       end
 
@@ -61,8 +61,8 @@ def registries(register_name = nil)
           end
         else
           @registries[register_name] ||=
-          Paneron::Register::Register.new(register_root_path,
-            register_name)
+            Paneron::Register::Register.new(register_root_path,
+                                            register_name)
         end
       end
 
diff --git a/spec/item_class_spec.rb b/spec/item_class_spec.rb
index 3a8c619..16c0662 100644
--- a/spec/item_class_spec.rb
+++ b/spec/item_class_spec.rb
@@ -1,7 +1,7 @@
 RSpec.describe Paneron::Register::ItemClass do
   let(:item_class) do
     Paneron::Register::ItemClass.new("spec/fixtures/test-register", "reg-1",
-                                   "item-class-1")
+                                     "item-class-1")
   end
 
   it "lists out item UUIDs" do