@@ -24,11 +24,11 @@
 #import <ObjFW/ObjFW.h>
 
 /**
  * \brief A class for easy handling of JIDs.
  */
-@interface XMPPJID: OFObject
+@interface XMPPJID: OFObject <OFCopying>
 {
 	/// The JID's localpart
 	OFString *node;
 	/// The JID's domainpart
 	OFString *domain;