diff --git a/app/controllers/store_controller_decorator.rb b/app/controllers/store_controller_decorator.rb
index 57b7dae..6aece73 100644
--- a/app/controllers/store_controller_decorator.rb
+++ b/app/controllers/store_controller_decorator.rb
@@ -1,19 +1,13 @@
-Spree::StoreController.class_eval do
-  private
+# could not decorate Spree::Core::ControllerHelpers::Common#set_user_locale
+# so manualy override this method here by including ControllerHelperLocale
 
-  # Internal : Set user I18n.locale
-  #
-  # override spree_core set_user_language
-  # initialize user language :
-  #  params[:locale] is explicitly given by routing-filter /:locale
-  # or the session[:locale] set by Spree::LocaleController#set
-  # or I18n.locale set by rack-locale for example
-  # or Spree::Config[:default_locale]
-  # or Rails.application.config.i18n.default_locale
+Spree::StoreController.class_eval do
+  include SpreeMultiLingual::ControllerHelperLocale
+end
 
-  def set_user_language
-    locale = params[:locale] || session[:locale] || I18n.locale || Rails.application.config.i18n.default_locale
-    locale = I18n.default_locale unless locale && I18n.available_locales.include?(locale.to_sym)
-    I18n.locale = locale.to_sym
-  end
+# spree_devise_auth_devise controllers
+%w{Spree::UserRegistrationsController Spree::UserPasswordsController Spree::UserSessionsController Spree::UsersController}.each do |klass|
+  klass.class_eval do
+    include SpreeMultiLingual::ControllerHelperLocale
+  end if klass = klass.safe_constantize
 end
\ No newline at end of file
diff --git a/app/overrides/taxonomy_add_multi_language.rb b/app/overrides/taxonomy_add_multi_language.rb
index a9029ab..fac9153 100644
--- a/app/overrides/taxonomy_add_multi_language.rb
+++ b/app/overrides/taxonomy_add_multi_language.rb
@@ -5,7 +5,9 @@
         :partial => "spree/admin/taxonomies/multi_language_links")
 
 Deface::Override.new(
-        :virtual_path  => "spree/admin/taxons/edit",
-        :insert_before => '[data-hook="buttons"]',
-        :text => '<%= render "spree/admin/taxons/multi_scripts", :object => @taxon -%>',
+        :virtual_path  => "spree/admin/taxons/_form",
+        :insert_top => '[data-hook="admin_inside_taxon_form"]',
+        :text => ' <div class="alpha twelve columns">
+        <%= render "spree/admin/taxons/multi_scripts", :object => @taxon -%>
+        </div>',
         :name    => "taxon_add_language_dropdown")
\ No newline at end of file
diff --git a/lib/spree_multi_lingual/controller_helper_locale.rb b/lib/spree_multi_lingual/controller_helper_locale.rb
new file mode 100644
index 0000000..6f8cb6f
--- /dev/null
+++ b/lib/spree_multi_lingual/controller_helper_locale.rb
@@ -0,0 +1,26 @@
+module SpreeMultiLingual::ControllerHelperLocale
+  extend ActiveSupport::Concern
+
+  included do |base|
+    # only way to make sure that set_user_language included by spree_auth_devise controller is overriden correctly
+    base.class_eval do
+      private
+
+      # Internal : Set user I18n.locale
+      #
+      # override spree_core set_user_language
+      # initialize user language :
+      #  params[:locale] is explicitly given by routing-filter /:locale
+      # or the session[:locale] set by Spree::LocaleController#set
+      # or I18n.locale set by rack-locale for example
+      # or Spree::Config[:default_locale]
+      # or Rails.application.config.i18n.default_locale
+      def set_user_language
+        locale = params[:locale] || session[:locale] || I18n.locale || Rails.application.config.i18n.default_locale
+        locale = I18n.default_locale unless locale && I18n.available_locales.include?(locale.to_sym)
+        I18n.locale = locale.to_sym
+      end
+    end
+  end
+
+end
\ No newline at end of file
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index dfc2ac2..3fa3f0d 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -5,7 +5,7 @@
 
 require 'rspec/rails'
 require 'ffaker'
-# require 'debugger'
+require 'debugger'
 
 # Requires supporting ruby files with custom matchers and macros, etc,
 # in spec/support/ and its subdirectories.
diff --git a/spree_multi_lingual.gemspec b/spree_multi_lingual.gemspec
index b03835b..f028132 100644
--- a/spree_multi_lingual.gemspec
+++ b/spree_multi_lingual.gemspec
@@ -41,6 +41,6 @@ Gem::Specification.new do |s|
   s.add_development_dependency 'email_spec', '~> 1.2.1'
   s.add_development_dependency 'selenium-webdriver', '2.35.1'
   # Seems Spree doesn't require it correctly or there is a problem with extensions maybe? Still, it is needed to work with the dummy app!
-  # s.add_development_dependency 'debugger'
+  s.add_development_dependency 'debugger'
   s.add_development_dependency 'sass-rails'
 end