diff --git a/lib/active_support/cache/zammad_file_store.rb b/lib/active_support/cache/zammad_file_store.rb
index 840bb6d67..ee8abd442 100644
--- a/lib/active_support/cache/zammad_file_store.rb
+++ b/lib/active_support/cache/zammad_file_store.rb
@@ -8,7 +8,7 @@ module ActiveSupport
         # time, just log it
         super
       rescue => e
-        Rails.logger.error "Can't write cache #{key}: #{e.inspect}"
+        Rails.logger.error "Can't write cache #{name}: #{e.inspect}"
         Rails.logger.error e
       end
     end