diff --git a/plugins/discourse-narrative-bot/db/post_migrate/20200520015508_clear_last_gravatar_download_attempt_on_user_avatars.rb b/plugins/discourse-narrative-bot/db/post_migrate/20200520015508_clear_last_gravatar_download_attempt_on_user_avatars.rb
index d7f30797b57..c9029730814 100644
--- a/plugins/discourse-narrative-bot/db/post_migrate/20200520015508_clear_last_gravatar_download_attempt_on_user_avatars.rb
+++ b/plugins/discourse-narrative-bot/db/post_migrate/20200520015508_clear_last_gravatar_download_attempt_on_user_avatars.rb
@@ -10,5 +10,6 @@ class ClearLastGravatarDownloadAttemptOnUserAvatars < ActiveRecord::Migration[6.
   end
 
   def down
+    raise ActiveRecord::IrreversibleMigration
   end
 end