diff --git a/app/controllers/public/home_controller.rb b/app/controllers/public/home_controller.rb
index 0acf562..e6c43a1 100644
--- a/app/controllers/public/home_controller.rb
+++ b/app/controllers/public/home_controller.rb
@@ -4,7 +4,7 @@ class HomeController < PublicController
     @has_news = false
     if environment.enabled?('use_portal_community') && environment.portal_community
       @has_news = true
-      @news_cache_key = "home_page_news_#{environment.id.to_s}"
+      @news_cache_key = environment.portal_news_cache_key
       if !read_fragment(@news_cache_key)
         portal_community = environment.portal_community
         @portal_news = portal_community.news(5)
diff --git a/app/models/environment.rb b/app/models/environment.rb
index 71d095a..d1c5a63 100644
--- a/app/models/environment.rb
+++ b/app/models/environment.rb
@@ -658,6 +658,10 @@ class Environment < ActiveRecord::Base
     self.settings['tip_message_enterprise_activation_question'] = value
   end
 
+  def portal_news_cache_key
+    "home-page-news-#{id}_#{portal_community.name}"
+  end
+
   after_create :create_templates
 
   def create_templates
diff --git a/app/sweepers/article_sweeper.rb b/app/sweepers/article_sweeper.rb
index 4037221..352aae8 100644
--- a/app/sweepers/article_sweeper.rb
+++ b/app/sweepers/article_sweeper.rb
@@ -22,7 +22,7 @@ protected
     blocks.map(&:cache_keys).each{|ck|expire_timeout_fragment(ck)}
     env = article.profile.environment
     if env.portal_community == article.profile
-      expire_fragment("home_page_news_#{env.id}")
+      expire_fragment(env.portal_news_cache_key)
     end
   end
 
--
libgit2 0.21.2