diff --git a/app/models/fragment_expiration.rb b/app/models/fragment_expiration.rb
index f124c8c2..1f312829 100644
--- a/app/models/fragment_expiration.rb
+++ b/app/models/fragment_expiration.rb
@@ -9,6 +9,13 @@ module FragmentExpiration
       expire_fragment(localized_key)
     end
   end
+
+  def expire_key_in_all_locales(key)
+    I18n.available_locales.each do |locale|
+      localized_key = localize_fragment_key(key, locale)
+      Rails.cache.delete(localized_key)
+    end
+  end
   
   private
   
diff --git a/app/models/item_observer.rb b/app/models/item_observer.rb
index 820a817a..ee68cc30 100644
--- a/app/models/item_observer.rb
+++ b/app/models/item_observer.rb
@@ -22,6 +22,7 @@ class ItemObserver < ActionController::Caching::Sweeper
     expire_fragment_in_all_locales("items/#{item.id}#item_link_partial")
     expire_fragment_in_all_locales("items/#{item.id} header")
     expire_fragment_in_all_locales("items/#{item.id} info")
+    expire_key_in_all_locales("items/#{item.id}#as_json")
   end
   
   def expire_newest_items