attr_cleaner.rb in attr_cleaner-0.1.1

- old
+ new

@@ -1,6 +1,7 @@
 require "active_support"
 require "active_support/core_ext/module/aliasing"
+require "active_support/core_ext/class/attribute"
 require "active_support/concern"
 
 require "attr_cleaner/module_mixin"
 
 # If not using active_record then include AttrCleaner::ModuleMixin.
\ No newline at end of file