diff --git a/app/helpers/spree/admin/images_helper.rb b/app/helpers/spree/admin/images_helper.rb
index 816972b08b..9c12507504 100644
--- a/app/helpers/spree/admin/images_helper.rb
+++ b/app/helpers/spree/admin/images_helper.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Spree
   module Admin
     module ImagesHelper
@@ -15,4 +17,3 @@ module Spree
     end
   end
 end
-
diff --git a/app/models/spree/asset.rb b/app/models/spree/asset.rb
index 4e0f7d81f0..d5eb00d506 100644
--- a/app/models/spree/asset.rb
+++ b/app/models/spree/asset.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Spree
   class Asset < ActiveRecord::Base
     belongs_to :viewable, polymorphic: true, touch: true
diff --git a/app/models/spree/image.rb b/app/models/spree/image.rb
index ded26d20fd..51de34e69a 100644
--- a/app/models/spree/image.rb
+++ b/app/models/spree/image.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 module Spree
   class Image < Asset
     validates_attachment_presence :attachment
@@ -23,7 +25,7 @@ module Spree
     Spree::Image.attachment_definitions[:attachment][:default_url] = Spree::Config[:attachment_default_url]
     Spree::Image.attachment_definitions[:attachment][:default_style] = Spree::Config[:attachment_default_style]
 
-    #used by admin products autocomplete
+    # used by admin products autocomplete
     def mini_url
       attachment.url(:mini, false)
     end
diff --git a/spec/models/spree/asset_spec.rb b/spec/models/spree/asset_spec.rb
index b1415cd0de..d36d505f3a 100644
--- a/spec/models/spree/asset_spec.rb
+++ b/spec/models/spree/asset_spec.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require 'spec_helper'
 
 describe Spree::Asset do
@@ -6,7 +8,7 @@ describe Spree::Asset do
       product = create(:custom_product)
       asset = Spree::Asset.create! { |a| a.viewable = product.master }
 
-      product.update_column(:updated_at,  1.day.ago)
+      product.update_column(:updated_at, 1.day.ago)
 
       expect do
         asset.touch