Index: /trunk/src/VBox/Devices/Network/slirp/libslirp.h
===================================================================
--- /trunk/src/VBox/Devices/Network/slirp/libslirp.h	(revision 50690)
+++ /trunk/src/VBox/Devices/Network/slirp/libslirp.h	(revision 50691)
@@ -102,5 +102,5 @@
  */
 #if (defined(RT_OS_DARWIN))
-# define HAVE_NOTIFICATION_FOR_DNS_UPDATE 0
+# define HAVE_NOTIFICATION_FOR_DNS_UPDATE 1
 #else
 # define HAVE_NOTIFICATION_FOR_DNS_UPDATE 0