@@ -32,11 +32,11 @@
  * for OFData with item size 1.
  */
 @interface OFData: OFObject <OFCopying, OFMutableCopying, OFComparing,
     OFSerialization, OFMessagePackRepresentation>
 {
-	unsigned char *_items;
+	unsigned char *_Nullable _items;
 	size_t _count, _itemSize;
 	bool _freeWhenDone;
 }
 
 /*!