@@ -19,11 +19,11 @@
 } of_list_object_t;
 
 /**
  * The OFList class provides easy to use double-linked lists.
  */
-@interface OFList: OFObject
+@interface OFList: OFObject <OFCopying>
 {
 	of_list_object_t *first;
 	of_list_object_t *last;
 	BOOL		 retain_and_release;
 }