diff --git a/src/config.h b/src/config.h
index 3aecf0b..63e7488 100644
--- a/src/config.h
+++ b/src/config.h
@@ -116,7 +116,7 @@ RESOLVFILE
    has no library dependencies other than libc */
 
 #define HAVE_DHCP
-/* #define HAVE_DHCP6 */
+#define HAVE_DHCP6 
 #define HAVE_TFTP
 #define HAVE_SCRIPT
 /* #define HAVE_LUASCRIPT */