diff --git a/app/models/backup.rb b/app/models/backup.rb
index e63e03be5..5223f0fbb 100644
--- a/app/models/backup.rb
+++ b/app/models/backup.rb
@@ -47,7 +47,7 @@ class Backup
   end
 
   def self.base_directory
-    @base_directory ||= File.join(Rails.root, "public", "backups", RailsMultisite::ConnectionManagement.current_db)
+    File.join(Rails.root, "public", "backups", RailsMultisite::ConnectionManagement.current_db)
   end
 
   def self.chunk_path(identifier, filename, chunk_number)