diff --git a/lib/announcement/engine.rb b/lib/announcement/engine.rb
index 65c574d..71d0c0b 100644
--- a/lib/announcement/engine.rb
+++ b/lib/announcement/engine.rb
@@ -98,12 +98,14 @@ module Announcement
         rescue => e
           puts ['there_was_no_show_option_method',e]
         end
-        begin
-          avoid_page_cache AnnsCache
-          avoid_page_cache BulletinFeedCache
-          avoid_page_cache BulletinFeed
-        rescue => e
-          puts ["avoid_page_cache", e.to_s]
+        if File.basename($0) != 'rake'
+          begin
+            avoid_page_cache AnnsCache
+            avoid_page_cache BulletinFeedCache
+            avoid_page_cache BulletinFeed
+          rescue => e
+            puts ["avoid_page_cache", e.to_s]
+          end
         end
         side_bar do
           head_label_i18n 'announcement.announcement', icon_class: "icons-megaphone"