@@ -13,11 +13,11 @@
 #import "OFDataArray.h"
 
 /**
  * The OFArray class provides a class for storing objects in an array.
  */
-@interface OFArray: OFObject <OFCopying>
+@interface OFArray: OFObject <OFCopying, OFMutableCopying>
 {
 	OFDataArray *array;
 }
 
 /**