diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 22b4849b2..8d97f582a 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,5 +1,9 @@
 D1X-Rebirth Changelog
 
+20100917
+--------
+arch/carbon/conf.h: Enable IPv6 for Mac OS X
+
 20100904
 --------
 main/titles.c: In briefing_init() init robot angles properly because in show_spinning_robot_frame() robot_angles.h is incremented only but not initialized
diff --git a/arch/carbon/conf.h b/arch/carbon/conf.h
index 438f1dc21..274f38644 100644
--- a/arch/carbon/conf.h
+++ b/arch/carbon/conf.h
@@ -45,7 +45,9 @@
 /* Define if you want a network build */
 # define NETWORK
 # define USE_UDP
-# define USE_IPX
+//# define USE_IPX
+
+#define IPv6
 
 /* Define to 1 if the system has the type `struct timespec'. */
 #define HAVE_STRUCT_TIMESPEC 1