diff -Naur a/core/rtw_br_ext.c b/core/rtw_br_ext.c
--- a/core/rtw_br_ext.c	2013-09-11 05:56:55.000000000 +0200
+++ b/core/rtw_br_ext.c	2016-02-10 08:06:48.999417391 +0100
@@ -51,6 +51,7 @@
 #include <linux/icmpv6.h>
 #include <net/ndisc.h>
 #include <net/checksum.h>
+#include <net/ip6_checksum.h>
 #endif
 #endif
 
