@@ -119,10 +119,11 @@
  * @note If you change any of the properties, make sure to set
  *	 @ref configReloadInterval to 0, as otherwise your changes will be
  *	 reverted back to the system configuration on the next periodic config
  *	 reload.
  */
+OF_SUBCLASSING_RESTRICTED
 @interface OFDNSResolver: OFObject
 {
 	OFDictionary OF_GENERIC(OFString *, OFArray OF_GENERIC(OFString *) *)
 	    *_staticHosts;
 	OFArray OF_GENERIC(OFString *) *_nameServers;