diff --git a/include/uapi/linux/if_arp.h b/include/uapi/linux/if_arp.h
index d7fea3496f32..4d024d75d64b 100644
--- a/include/uapi/linux/if_arp.h
+++ b/include/uapi/linux/if_arp.h
@@ -94,6 +94,7 @@
 #define ARPHRD_CAIF	822		/* CAIF media type		*/
 #define ARPHRD_IP6GRE	823		/* GRE over IPv6		*/
 #define ARPHRD_NETLINK	824		/* Netlink header		*/
+#define ARPHRD_6LOWPAN	825		/* IPv6 over LoWPAN             */
 
 #define ARPHRD_VOID	  0xFFFF	/* Void type, nothing is known */
 #define ARPHRD_NONE	  0xFFFE	/* zero header length */