--- zzzz-none-000/linux-4.4.60/include/uapi/linux/netfilter_arp/arp_tables.h	2017-04-08 07:53:53.000000000 +0000
+++ dragonfly-4020-701/linux-4.4.60/include/uapi/linux/netfilter_arp/arp_tables.h	2018-11-08 13:36:17.000000000 +0000
@@ -68,7 +68,7 @@
 	__u8 flags;
 	/* Inverse flags */
 	__u16 invflags;
-};
+} __attribute__((aligned(4)));
 
 /* Values for "flag" field in struct arpt_ip (general arp structure).
  * No flags defined yet.