diff --git a/app/models/main_block.rb b/app/models/main_block.rb
index a834c11..0ed3650 100644
--- a/app/models/main_block.rb
+++ b/app/models/main_block.rb
@@ -24,4 +24,10 @@ class MainBlock < Block
     ['always', 'except_home_page']
   end
 
+  def display_user_options
+    @display_user_options = {
+      'all'            => _('All users')
+    }
+  end
+
 end
diff --git a/test/functional/profile_design_controller_test.rb b/test/functional/profile_design_controller_test.rb
index b0dde3d..bbe55ac 100644
--- a/test/functional/profile_design_controller_test.rb
+++ b/test/functional/profile_design_controller_test.rb
@@ -755,4 +755,12 @@ class ProfileDesignControllerTest < ActionController::TestCase
     assert_response :forbidden
   end
 
+  should 'guarantee main block is always visible to everybody' do
+    get :edit, :profile => 'designtestuser', :id => @b4.id
+    %w[logged not_logged followers].each do |option|
+    assert_no_tag :select, :attributes => {:name => 'block[display_user]'},
+     :descendant => {:tag => 'option', :attributes => {:value => option}}
+    end
+  end
+
 end
diff --git a/test/unit/main_block_test.rb b/test/unit/main_block_test.rb
index ce2c18d..1124416 100644
--- a/test/unit/main_block_test.rb
+++ b/test/unit/main_block_test.rb
@@ -29,4 +29,8 @@ class MainBlockTest < ActiveSupport::TestCase
     assert !block.visible?
   end
 
+  should 'guarantee main block is always visible to everybody' do
+    assert_equal MainBlock.new.display_user_options, {"all"=>_('All users')}
+  end
+
 end
--
libgit2 0.21.2