diff --git a/app/assets/javascripts/admin/models/site_customization.js b/app/assets/javascripts/admin/models/site_customization.js
index 0e678185c..bc41b4936 100644
--- a/app/assets/javascripts/admin/models/site_customization.js
+++ b/app/assets/javascripts/admin/models/site_customization.js
@@ -7,7 +7,7 @@
   @module Discourse
 **/
 Discourse.SiteCustomization = Discourse.Model.extend({
-  trackedProperties: ['enabled', 'name', 'stylesheet', 'header', 'footer', 'mobile_stylesheet', 'mobile_header', 'mobile_footer', 'override_default_style'],
+  trackedProperties: ['enabled', 'name', 'stylesheet', 'header', 'footer', 'mobile_stylesheet', 'mobile_header', 'mobile_footer'],
 
   description: function() {
     return "" + this.name + (this.enabled ? ' (*)' : '');
@@ -26,7 +26,7 @@ Discourse.SiteCustomization = Discourse.Model.extend({
 
     return changed;
 
-  }.property('override_default_style', 'enabled', 'name', 'stylesheet', 'header', 'footer', 'mobile_stylesheet', 'mobile_header', 'mobile_footer', 'originals'),
+  }.property('enabled', 'name', 'stylesheet', 'header', 'footer', 'mobile_stylesheet', 'mobile_header', 'mobile_footer', 'originals'),
 
   startTrackingChanges: function() {
     var self = this;
@@ -51,8 +51,7 @@ Discourse.SiteCustomization = Discourse.Model.extend({
       footer: this.footer,
       mobile_stylesheet: this.mobile_stylesheet,
       mobile_header: this.mobile_header,
-      mobile_footer: this.mobile_footer,
-      override_default_style: this.override_default_style
+      mobile_footer: this.mobile_footer
     };
 
     var siteCustomization = this;
diff --git a/app/assets/javascripts/admin/templates/customize_css_html.hbs b/app/assets/javascripts/admin/templates/customize_css_html.hbs
index 6bf7f0d53..3729955d7 100644
--- a/app/assets/javascripts/admin/templates/customize_css_html.hbs
+++ b/app/assets/javascripts/admin/templates/customize_css_html.hbs
@@ -35,7 +35,6 @@
     </div>
     <br>
     <div class='status-actions'>
-      <span>{{i18n 'admin.customize.override_default'}} {{input type="checkbox" checked=selectedItem.override_default_style}}</span>
       <span>{{i18n 'admin.customize.enabled'}}  {{input type="checkbox" checked=selectedItem.enabled}}</span>
       {{#unless selectedItem.changed}}
       <a class='preview-link' {{bind-attr href="selectedItem.previewUrl"}} target='_blank' title="{{i18n 'admin.customize.explain_preview'}}">{{i18n 'admin.customize.preview'}}</a>
diff --git a/app/assets/javascripts/admin/templates/logs/_site_customization_change_details.hbs b/app/assets/javascripts/admin/templates/logs/_site_customization_change_details.hbs
index eced3892f..1c353f62a 100644
--- a/app/assets/javascripts/admin/templates/logs/_site_customization_change_details.hbs
+++ b/app/assets/javascripts/admin/templates/logs/_site_customization_change_details.hbs
@@ -17,6 +17,3 @@
 <section class="field">
   <b>{{i18n 'admin.customize.enabled'}}</b>: {{enabled}}
 </section>
-<section class="field">
-  <b>{{i18n 'admin.customize.override_default'}}</b>: {{override_default_style}}
-</section>
diff --git a/app/controllers/admin/site_customizations_controller.rb b/app/controllers/admin/site_customizations_controller.rb
index 16540daaf..4c3f671da 100644
--- a/app/controllers/admin/site_customizations_controller.rb
+++ b/app/controllers/admin/site_customizations_controller.rb
@@ -54,7 +54,7 @@ class Admin::SiteCustomizationsController < Admin::AdminController
       params.require(:site_customization)
             .permit(:name, :stylesheet, :header, :footer,
                     :mobile_stylesheet, :mobile_header, :mobile_footer,
-                    :position, :enabled, :key, :override_default_style,
+                    :position, :enabled, :key,
                     :stylesheet_baked)
     end
 
diff --git a/app/models/site_customization.rb b/app/models/site_customization.rb
index 47d224b6e..43f7752fc 100644
--- a/app/models/site_customization.rb
+++ b/app/models/site_customization.rb
@@ -100,12 +100,6 @@ class SiteCustomization < ActiveRecord::Base
     end
   end
 
-  def self.override_default_style(preview_style)
-    preview_style ||= enabled_style_key
-    style = lookup_style(preview_style)
-    style.override_default_style if style
-  end
-
   def self.lookup_style(key)
     return if key.blank?
 
diff --git a/app/services/staff_action_logger.rb b/app/services/staff_action_logger.rb
index 9dbe38e17..0c9e6c115 100644
--- a/app/services/staff_action_logger.rb
+++ b/app/services/staff_action_logger.rb
@@ -79,7 +79,7 @@ class StaffActionLogger
     }))
   end
 
-  SITE_CUSTOMIZATION_LOGGED_ATTRS = ['stylesheet', 'header', 'position', 'enabled', 'key', 'override_default_style']
+  SITE_CUSTOMIZATION_LOGGED_ATTRS = ['stylesheet', 'header', 'position', 'enabled', 'key']
 
   def log_site_customization_change(old_record, site_customization_params, opts={})
     raise Discourse::InvalidParameters.new('site_customization_params is nil') unless site_customization_params
diff --git a/app/views/common/_discourse_stylesheet.html.erb b/app/views/common/_discourse_stylesheet.html.erb
index a249e1b45..3d1f10818 100644
--- a/app/views/common/_discourse_stylesheet.html.erb
+++ b/app/views/common/_discourse_stylesheet.html.erb
@@ -1,6 +1,4 @@
-<%- unless SiteCustomization.override_default_style(session[:preview_style]) %>
-  <%= DiscourseStylesheets.stylesheet_link_tag(mobile_view? ? :mobile : :desktop) %>
-<%- end %>
+<%= DiscourseStylesheets.stylesheet_link_tag(mobile_view? ? :mobile : :desktop) %>
 
 <%- if staff? %>
   <%= stylesheet_link_tag "admin"%>
diff --git a/db/migrate/20141222051622_remove_override_default_styles_from_site_customizations.rb b/db/migrate/20141222051622_remove_override_default_styles_from_site_customizations.rb
new file mode 100644
index 000000000..c70f570f8
--- /dev/null
+++ b/db/migrate/20141222051622_remove_override_default_styles_from_site_customizations.rb
@@ -0,0 +1,5 @@
+class RemoveOverrideDefaultStylesFromSiteCustomizations < ActiveRecord::Migration
+  def change
+    remove_column :site_customizations, :override_default_style
+  end
+end